diff --git a/api/common/Controller/Attachments.php b/api/common/Controller/Attachments.php
new file mode 100644
index 0000000..e7dd760
--- /dev/null
+++ b/api/common/Controller/Attachments.php
@@ -0,0 +1,60 @@
+<?php
+namespace ProVM\Common\Controller;
+
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use function Safe\json_decode;
+use ProVM\Common\Implement\Controller\Json;
+use ProVM\Common\Service\Attachments as Service;
+
+class Attachments
+{
+    use Json;
+
+    public function __invoke(ServerRequestInterface $request, ResponseInterface $response, Service $service): ResponseInterface
+    {
+        $attachments = array_map(function($attachment) {
+            $attachment['original_attachment'] = $attachment['original_attachment']->getRealPath();
+            if (isset($attachment['decrypted_attachment']) and $attachment['decrypted_attachment'] !== false) {
+                $attachment['decrypted_attachment'] = $attachment['decrypted_attachment']->getRealPath();
+            }
+            return $attachment;
+        }, $service->fetchFullAttachments());
+        return $this->withJson($response, compact('attachments'));
+    }
+    protected function fileToArray(\SplFileInfo $info): array
+    {
+        return [
+            'filename' => $info->getFilename(),
+            'path' => $info->getPath(),
+            'full_name' => $info->getRealPath(),
+            'extension' => $info->getExtension()
+        ];
+    }
+    public function get(ServerRequestInterface $request, ResponseInterface $response, Service $service): ResponseInterface
+    {
+        $body = $request->getBody()->getContents();
+        $json = json_decode($body);
+        if (!is_array($json)) {
+            $json = [$json];
+        }
+        $output = ['input' => $json, 'attachments' => []];
+        foreach ($json as $attachment) {
+            $output['attachments'] []= $this->fileToArray($service->getAttachment($json->attachment));
+        }
+        return $this->withJson($response, $output);
+    }
+    public function decrypt(ServerRequestInterface $request, ResponseInterface $response, Service $service): ResponseInterface
+    {
+        $body = $request->getBody()->getContents();
+        $json = json_decode($body);
+        if (!is_array($json)) {
+            $json = [$json];
+        }
+        $output = ['input' => $json, 'attachments' => []];
+        foreach ($json as $attachment) {
+            $output['attachments'] []= $this->fileToArray($service->removeEncryption($attachment));
+        }
+        return $this->withJson($response, $output);
+    }
+}
\ No newline at end of file
diff --git a/api/common/Controller/Emails.php b/api/common/Controller/Emails.php
new file mode 100644
index 0000000..5137841
--- /dev/null
+++ b/api/common/Controller/Emails.php
@@ -0,0 +1,141 @@
+<?php
+namespace ProVM\Common\Controller;
+
+use Ddeboer\Imap\MailboxInterface;
+use ProVM\Common\Implement\Controller\Json;
+use ProVM\Emails\Repository\Mailbox;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use ProVM\Common\Service\Emails as Service;
+use Psr\Log\LoggerInterface;
+use Safe\Exceptions\FilesystemException;
+
+class Emails
+{
+    use Json;
+
+    public function __construct(LoggerInterface $logger)
+    {
+        $this->setLogger($logger);
+    }
+
+    protected LoggerInterface $logger;
+    public function getLogger(): LoggerInterface
+    {
+        return $this->logger;
+    }
+    public function setLogger(LoggerInterface $logger): Emails
+    {
+        $this->logger = $logger;
+        return $this;
+    }
+
+    public function mailboxes(ServerRequestInterface $request, ResponseInterface $response, Service $service): ResponseInterface
+    {
+        $mailboxes = array_map(function(MailboxInterface $mailbox) {
+            return ['name' => $mailbox->getName(), 'message_count' => $mailbox->count()];
+        }, array_values($service->getMailboxes()->getAll()));
+        return $this->withJson($response, compact('mailboxes'));
+    }
+    public function messages(ServerRequestInterface $request, ResponseInterface $response, Service $service, Mailbox $repository): ResponseInterface
+    {
+        $body = $request->getBody()->getContents();
+        $json = \Safe\json_decode($body);
+        $mailbox = $repository->fetchById($json->mailbox);
+        $remote_mailbox = $service->getMailboxes()->get($mailbox->getName());
+        $messages = $service->getMessages($remote_mailbox, $json->start ?? 0, $json->amount ?? null);
+        $mails = [];
+        foreach ($messages as $message) {
+            $mails []= [
+                'position' => $message->getPosition(),
+                'uid' => $message->getUID(),
+                'subject' => $message->getSubject(),
+                'date' => $message->getDateTime()->format('Y-m-d H:i:s'),
+                'from' => $message->getFrom(),
+                'has_attachments' => $message->hasAttachments(),
+                'valid_attachments' => $message->hasValidAttachments(),
+                'downloaded_attachments' => $message->hasDownloadedAttachments()
+            ];
+        }
+        return $this->withJson($response, [
+            'input' => $json,
+            'total' => $mailbox->count(),
+            'messages' => $mails
+        ]);
+    }
+    public function withAttachments(ServerRequestInterface $request, ResponseInterface $response, Service $service): ResponseInterface
+    {
+        $body = $request->getBody()->getContents();
+        $json = \Safe\json_decode($body);
+        $mailbox = $service->getMailboxes()->get($json->mailbox);
+        $messages = $service->getValidMessages($mailbox, $json->start ?? 0, $json->amount ?? null);
+        $mails = [];
+        foreach ($messages as $message) {
+            $mails []= [
+                'position' => $message->getPosition(),
+                'uid' => $message->getUID(),
+                'subject' => $message->getSubject(),
+                'date' => $message->getDateTime()->format('Y-m-d H:i:s'),
+                'from' => $message->getFrom(),
+                'has_attachments' => $message->hasAttachments(),
+                'valid_attachments' => $message->hasValidAttachments(),
+                'downloaded_attachments' => $message->hasDownloadedAttachments()
+            ];
+        }
+        return $this->withJson($response, [
+            'input' => $json,
+            'total' => $service->getMailboxes()->countValid($mailbox),
+            'messages' => $mails
+        ]);
+    }
+    public function attachments(ServerRequestInterface $request, ResponseInterface $response, Service $service): ResponseInterface
+    {
+        $body = $request->getBody()->getContents();
+        $json = \Safe\json_decode($body);
+        $mailbox = $service->getMailboxes()->get($json->mailbox);
+        $messages = $service->getMessages($mailbox, $json->start ?? 0, $json->amount ?? null);
+        $cnt = 0;
+        $attachments = [];
+        foreach ($messages as $message) {
+            $attachments = array_merge($attachments, $service->saveAttachments($message, $json->extension ?? null));
+            $cnt ++;
+        }
+        return $this->withJson($response, [
+            'input' => $json,
+            'messages_count' => $cnt,
+            'attachments_count' => count($attachments),
+            'attachments' => $attachments
+        ]);
+    }
+    public function attachment(ServerRequestInterface $request, ResponseInterface $response, Service $service): ResponseInterface
+    {
+        $body = $request->getBody()->getContents();
+        $json = \Safe\json_decode($body);
+        $mailbox = $service->getMailbox($json->mailbox);
+        $cnt = 0;
+        $attachments = [];
+        $errors = [];
+        foreach ($json->messages as $uid) {
+            $message = $service->getMessage($mailbox, $uid);
+            try {
+                $attachments = array_merge($attachments, $service->saveAttachments($message, $json->extension ?? null));
+            } catch (FilesystemException $e) {
+                $errors []= [
+                    'message' => $uid,
+                    'error' => $e->getMessage()
+                ];
+            }
+            $cnt ++;
+        }
+        $output = [
+            'input' => $json,
+            'messages_count' => $cnt,
+            'attachments_count' => count($attachments),
+            'attachments' => $attachments
+        ];
+        if (count($errors) > 0) {
+            $output['errors'] = $errors;
+        }
+        return $this->withJson($response, $output);
+    }
+}
diff --git a/api/common/Controller/Install.php b/api/common/Controller/Install.php
new file mode 100644
index 0000000..238838b
--- /dev/null
+++ b/api/common/Controller/Install.php
@@ -0,0 +1,28 @@
+<?php
+namespace ProVM\Common\Controller;
+
+use ProVM\Common\Implement\Controller\Json;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Exception;
+use ProVM\Common\Service\Install as Service;
+
+class Install
+{
+    use Json;
+
+    public function __invoke(ServerRequestInterface $request, ResponseInterface $response, Service $service): ResponseInterface
+    {
+        try {
+            $service->run();
+            return $this->withJson($response, [
+                'message' => 'Install finished'
+            ]);
+        } catch (Exception $e) {
+            return $this->withJson($response, [
+                'message' => 'Install with error',
+                'error' => $e->getMessage()
+            ]);
+        }
+    }
+}
\ No newline at end of file
diff --git a/api/common/Controller/Mailboxes.php b/api/common/Controller/Mailboxes.php
new file mode 100644
index 0000000..d29dc26
--- /dev/null
+++ b/api/common/Controller/Mailboxes.php
@@ -0,0 +1,83 @@
+<?php
+namespace ProVM\Common\Controller;
+
+use ProVM\Common\Exception\Database\BlankResult;
+use ProVM\Common\Implement\Controller\Json;
+use ProVM\Emails\Repository\Mailbox;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+
+class Mailboxes
+{
+    use Json;
+
+    public function __invoke(ServerRequestInterface $request, ResponseInterface $response, \ProVM\Common\Service\Mailboxes $service, Mailbox $repository): ResponseInterface
+    {
+        $source_mailboxes = $service->getAll();
+        $mailboxes = [];
+        foreach ($source_mailboxes as $mailbox) {
+            $m = [
+                'name' => $mailbox->getName(),
+                'registered' => false
+            ];
+            try {
+                $s = $repository->fetchByName($mailbox->getName());
+                $m['registered'] = true;
+                $m['id'] = $s->getId();
+            } catch (BlankResult $e) {
+            }
+            $mailboxes []= $m;
+        }
+        return $this->withJson($response, compact('mailboxes'));
+    }
+    public function register(ServerRequestInterface $request, ResponseInterface $response, \ProVM\Common\Service\Mailboxes $service, Mailbox $repository): ResponseInterface
+    {
+        $body = $request->getBody();
+        $json = \Safe\json_decode($body->getContents());
+        $output = ['input' => $json, 'mailboxes' => []];
+        foreach ($json->mailboxes as $mailbox) {
+            try {
+                $model = $repository->create([
+                    'name' => $mailbox
+                ]);
+                $output['mailboxes'] []= ['name' => $mailbox, 'created' => true, 'id' => $model->getId()];
+            } catch (\PDOException $e) {
+                $output['mailboxes'] []= ['name' => $mailbox, 'created' => false];
+            }
+        }
+        return $this->withJson($response, $output);
+    }
+    public function unregister(ServerRequestInterface $request, ResponseInterface $response, Mailbox $repository): ResponseInterface
+    {
+        $body = $request->getBody();
+        $json = \Safe\json_decode($body->getContents());
+        $output = ['input' => $json, 'mailboxes' => []];
+        foreach ($json->mailboxes as $id) {
+            try {
+                $mailbox = $repository->fetchById($id);
+                try {
+                    $repository->delete($mailbox);
+                    $output['mailboxes'] []= ['name' => $mailbox->getName(), 'id' => $id, 'removed' => true];
+                } catch (\PDOException $e) {
+                    $output['mailboxes'] []= ['name' => $mailbox->getName(), 'id' => $id, 'removed' => false];
+                }
+            } catch (\PDOException | BlankResult $e) {
+                $output['mailboxes'] []= ['id' => $id, 'removed' => false];
+            }
+        }
+        return $this->withJson($response, $output);
+    }
+    public function registered(ServerRequestInterface $request, ResponseInterface $response, Mailbox $repository): ResponseInterface
+    {
+        $data = $repository->fetchAll();
+        $mailboxes = array_map(function(\ProVM\Emails\Model\Mailbox $mailbox) {
+            return $mailbox->toArray();
+        }, $data);
+        return $this->withJson($response, compact('mailboxes'));
+    }
+    public function get(ServerRequestInterface $request, ResponseInterface $response, Mailbox $repository, int $mailbox_id): ResponseInterface
+    {
+        $mailbox = $repository->fetchById($mailbox_id);
+        return $this->withJson($response, ['mailbox' => $mailbox->toArray()]);
+    }
+}
\ No newline at end of file
diff --git a/api/common/Controller/Messages.php b/api/common/Controller/Messages.php
new file mode 100644
index 0000000..f4e2507
--- /dev/null
+++ b/api/common/Controller/Messages.php
@@ -0,0 +1,117 @@
+<?php
+namespace ProVM\Common\Controller;
+
+use Ddeboer\Imap\MessageInterface;
+use ProVM\Common\Factory\Model;
+use ProVM\Emails\Model\State\Mailbox;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use ProVM\Common\Exception\Database\BlankResult;
+use ProVM\Common\Implement\Controller\Json;
+use ProVM\Common\Service\Mailboxes as Service;
+use ProVM\Emails\Repository\Message;
+use Safe\DateTimeImmutable;
+
+class Messages
+{
+    use Json;
+
+    public function __invoke(ServerRequestInterface $request, ResponseInterface $response, Message $repository): ResponseInterface
+    {
+        $body = $request->getBody();
+        $json = \Safe\json_decode($body->getContents());
+        $messages = [];
+        foreach ($json->mailboxes as $mailbox_id) {
+            $messages = array_merge($messages, $repository->fetchByMailbox($mailbox_id) ?? []);
+        }
+        $messages = array_map(function(\ProVM\Emails\Model\Message $message) {
+            return $message->toArray();
+        }, $messages);
+        return $this->withJson($response, ['messages' => $messages, 'total' => count($messages)]);
+    }
+    public function valid(ServerRequestInterface $request, ResponseInterface $response, Message $repository): ResponseInterface
+    {
+        $body = $request->getBody();
+        $json = \Safe\json_decode($body->getContents());
+        $messages = [];
+        foreach ($json->mailboxes as $mailbox_id) {
+            try {
+                $messages = array_merge($messages, $repository->fetchByMailbox($mailbox_id) ?? []);
+            } catch (BlankResult $e) {
+            }
+        }
+        $messages = array_values(array_map(function(\ProVM\Emails\Model\Message $message) {
+            return $message->toArray();
+        }, array_filter($messages, function(\ProVM\Emails\Model\Message $message) {
+            return $message->hasValidAttachments();
+        })));
+        return $this->withJson($response, ['messages' => $messages, 'total' => count($messages)]);
+    }
+    public function grab(ServerRequestInterface $request, ResponseInterface $response, Model $factory, Service $service): ResponseInterface
+    {
+        $body = $request->getBody();
+        $json = \Safe\json_decode($body->getContents());
+        $message_count = 0;
+        foreach ($json->mailboxes as $mailbox_name) {
+            $message_count += $this->grabFromMailbox($factory, $service, $mailbox_name);
+        }
+        return $this->withJson($response, compact('message_count'));
+    }
+
+    protected function grabFromMailbox(Model $factory, Service $service, string $mailbox_name): int
+    {
+        $mailbox = $factory->find(\ProVM\Emails\Model\Mailbox::class)->fetchByName($mailbox_name);
+        $stored = array_reduce($mailbox->getStates(), function($count, Mailbox $state) {
+            return $count + $state->getCount();
+        }) ?? 0;
+        $remote_mailbox = $service->get($mailbox->getName());
+        $total = $remote_mailbox->count();
+        if ($stored >= $total) {
+            return 0;
+        }
+        $added = 0;
+        $uids = [];
+        $amount = $total - $stored;
+        $messages = $service->getMessages($remote_mailbox, $stored, $amount);
+        foreach ($messages as $j => $m) {
+            if ($this->addMessage($factory->find(\ProVM\Emails\Model\Message::class), $service, $mailbox, $m, $j + 1)) {
+                $uids []= $m->getId();
+                $added ++;
+            }
+        }
+        if ($added > 0 ) {
+            $data = [
+                'mailbox_id' => $mailbox->getId(),
+                'date_time' => (new DateTimeImmutable('now'))->format('Y-m-d H:i:s'),
+                'count' => $added,
+                'uids' => serialize($uids)
+            ];
+            $state = $factory->find(\ProVM\Emails\Model\State\Mailbox::class)->create($data);
+            $factory->find(\ProVM\Emails\Model\State\Mailbox::class)->save($state);
+        }
+        return $added;
+    }
+    protected function addMessage(Message $repository, Service $service, \ProVM\Emails\Model\Mailbox $mailbox, MessageInterface $remote_message, int $position): bool
+    {
+        $data = [
+            'mailbox_id' => $mailbox->getId(),
+            'position' => $position,
+            'uid' => $remote_message->getId(),
+            'subject' => $remote_message->getSubject() ?? '',
+            'from' => $remote_message->getFrom()->getFullAddress(),
+            'date_time' => $remote_message->getDate()->format('Y-m-d H:i:s')
+        ];
+        $message = $repository->create($data);
+        if ($message->getId() === 0) {
+            if ($remote_message->hasAttachments()) {
+                $message->doesHaveAttachments();
+            }
+            if ($service->validAttachments($remote_message)) {
+                $message->doesHaveValidAttachments();
+            }
+            $repository->save($message);
+            return true;
+        }
+        return false;
+    }
+}
\ No newline at end of file
diff --git a/api/common/Define/Model.php b/api/common/Define/Model.php
new file mode 100644
index 0000000..28a9b45
--- /dev/null
+++ b/api/common/Define/Model.php
@@ -0,0 +1,6 @@
+<?php
+namespace ProVM\Common\Define;
+
+interface Model
+{
+}
\ No newline at end of file
diff --git a/api/common/Exception/Database/BlankResult.php b/api/common/Exception/Database/BlankResult.php
new file mode 100644
index 0000000..12734cc
--- /dev/null
+++ b/api/common/Exception/Database/BlankResult.php
@@ -0,0 +1,14 @@
+<?php
+namespace ProVM\Common\Exception\Database;
+
+use Exception;
+
+class BlankResult extends Exception
+{
+    public function __construct(?Throwable $previous = null)
+    {
+        $message = "No results found";
+        $code = 300;
+        parent::__construct($message, $code, $previous);
+    }
+}
\ No newline at end of file
diff --git a/api/common/Exception/Mailbox/EmptyMailbox.php b/api/common/Exception/Mailbox/EmptyMailbox.php
new file mode 100644
index 0000000..c5f1de1
--- /dev/null
+++ b/api/common/Exception/Mailbox/EmptyMailbox.php
@@ -0,0 +1,14 @@
+<?php
+namespace ProVM\Common\Exception;
+
+use Exception;
+
+class EmptyMailbox extends Exception
+{
+    public function __construct(?Throwable $previous = null)
+    {
+        $message = "No mails found";
+        $code = 102;
+        parent::__construct($message, $code, $previous);
+    }
+}
\ No newline at end of file
diff --git a/api/common/Exception/Mailbox/Invalid.php b/api/common/Exception/Mailbox/Invalid.php
new file mode 100644
index 0000000..998a105
--- /dev/null
+++ b/api/common/Exception/Mailbox/Invalid.php
@@ -0,0 +1,14 @@
+<?php
+namespace ProVM\Common\Exception\Mailbox;
+
+use Exception;
+
+class Invalid extends Exception
+{
+    public function __construct(?Throwable $previous = null)
+    {
+        $message = "Mailbox not found";
+        $code = 100;
+        parent::__construct($message, $code, $previous);
+    }
+}
\ No newline at end of file
diff --git a/api/common/Factory/Model.php b/api/common/Factory/Model.php
new file mode 100644
index 0000000..cc0dac1
--- /dev/null
+++ b/api/common/Factory/Model.php
@@ -0,0 +1,58 @@
+<?php
+namespace ProVM\Common\Factory;
+
+use ProVM\Common\Implement\Repository;
+use Psr\Container\ContainerInterface;
+
+class Model
+{
+    public function __construct(ContainerInterface $container)
+    {
+        $this->setContainer($container);
+    }
+
+    protected ContainerInterface $container;
+    protected array $repositories;
+
+    public function getContainer(): ContainerInterface
+    {
+        return $this->container;
+    }
+    public function getRepositories(): array
+    {
+        return $this->repositories;
+    }
+    public function getRepository(string $name): string
+    {
+        return $this->getRepositories()[$name];
+    }
+
+    public function setContainer(ContainerInterface $container): Model
+    {
+        $this->container = $container;
+        return $this;
+    }
+    public function addRepository(string $name, string $repository_class_name): Model
+    {
+        $this->repositories[$name] = $repository_class_name;
+        return $this;
+    }
+    public function setRepositories(array $repositories): Model
+    {
+        foreach ($repositories as $name => $class) {
+            $this->addRepository($name, $class);
+        }
+        return $this;
+    }
+
+    public function find(string $model_class_name): Repository
+    {
+        $name = str_replace("ProVM\\Emails\\Model\\", '', $model_class_name);
+        try {
+            $repository_class = $this->getRepository($name);
+        } catch (\Exception $e) {
+            $repository_class = str_replace('Model', 'Repository', $model_class_name);
+        }
+        return $this->getContainer()->get($repository_class);
+    }
+}
\ No newline at end of file
diff --git a/api/common/Implement/Controller/Json.php b/api/common/Implement/Controller/Json.php
new file mode 100644
index 0000000..4afd41d
--- /dev/null
+++ b/api/common/Implement/Controller/Json.php
@@ -0,0 +1,16 @@
+<?php
+namespace ProVM\Common\Implement\Controller;
+
+use Psr\Http\Message\ResponseInterface;
+
+trait Json
+{
+    public function withJson(ResponseInterface $response, mixed $data, int $status = 200): ResponseInterface
+    {
+        $response->getBody()->write(\Safe\json_encode($data));
+        return $response
+            ->withStatus($status)
+            ->withHeader('Content-Type', 'application/json');
+
+    }
+}
\ No newline at end of file
diff --git a/api/common/Implement/Repository.php b/api/common/Implement/Repository.php
new file mode 100644
index 0000000..3330796
--- /dev/null
+++ b/api/common/Implement/Repository.php
@@ -0,0 +1,185 @@
+<?php
+namespace ProVM\Common\Implement;
+
+use PDO;
+use ProVM\Common\Exception\Database\BlankResult;
+use Psr\Log\LoggerInterface;
+use ProVM\Common\Define\Model as ModelInterface;
+
+abstract class Repository
+{
+    public function __construct(PDO $connection, LoggerInterface $logger)
+    {
+        $this->setConnection($connection)
+            ->setLogger($logger);
+    }
+
+    protected PDO $connection;
+    protected string $table;
+    protected LoggerInterface $logger;
+
+    public function getConnection(): PDO
+    {
+        return $this->connection;
+    }
+    public function getTable(): string
+    {
+        return $this->table;
+    }
+    public function getLogger(): LoggerInterface
+    {
+        return $this->logger;
+    }
+
+    public function setConnection(PDO $pdo): Repository
+    {
+        $this->connection = $pdo;
+        return $this;
+    }
+    public function setTable(string $table): Repository
+    {
+        $this->table = $table;
+        return $this;
+    }
+    public function setLogger(LoggerInterface $logger): Repository
+    {
+        $this->logger = $logger;
+        return $this;
+    }
+
+    abstract protected function fieldsForUpdate(): array;
+    abstract protected function valuesForUpdate(ModelInterface $model): array;
+    protected function idProperty(): string
+    {
+        return 'getId';
+    }
+    protected function idField(): string
+    {
+        return 'id';
+    }
+    public function update(ModelInterface $model, ModelInterface $old): void
+    {
+        $query = "UPDATE `{$this->getTable()}` SET ";
+        $model_values = $this->valuesForUpdate($model);
+        $old_values = $this->valuesForUpdate($old);
+        $columns = [];
+        $values = [];
+        foreach ($this->fieldsForUpdate() as $column => $method) {
+            if (isset($model_values[$column]) and $old_values[$column] !== $model_values[$column]) {
+                $columns []= "`{$column}`";
+                $values []= $model_values[$column];
+            }
+        }
+        if (count($columns) === 0) {
+            return;
+        }
+        $query .= implode(', ', $columns) . " WHERE {$this->idField()} = ?";
+        $values []= $old->{$this->idProperty()}();
+        $st = $this->getConnection()->prepare($query);
+        $st->execute($values);
+    }
+    abstract protected function fieldsForInsert(): array;
+    abstract protected function valuesForInsert(ModelInterface $model): array;
+    protected function insert(ModelInterface $model): void
+    {
+        $fields = $this->fieldsForInsert();
+        $fields_string = implode(', ', array_map(function($field) {
+            return "`{$field}`";
+        }, $fields));
+        $fields_questions = implode(', ', array_fill(0, count($fields), '?'));
+        $query = "INSERT INTO `{$this->getTable()}` ({$fields_string}) VALUES ({$fields_questions})";
+        $values = $this->valuesForInsert($model);
+        $st = $this->getConnection()->prepare($query);
+        $st->execute($values);
+    }
+    abstract protected function defaultFind(ModelInterface $model): ModelInterface;
+    public function save(ModelInterface &$model): void
+    {
+        try {
+            $old = $this->defaultFind($model);
+            $this->update($model, $old);
+        } catch (BlankResult $e) {
+            $this->insert($model);
+            $model->setId($this->getConnection()->lastInsertId());
+        } catch (\Error | \Exception $e) {
+            $this->getLogger()->error($e);
+        }
+    }
+    abstract public function load(array $row): ModelInterface;
+
+    abstract protected function fieldsForCreate(): array;
+    abstract protected function valuesForCreate(array $data): array;
+    abstract protected function defaultSearch(array $data): ModelInterface;
+    public function create(array $data): ModelInterface
+    {
+        try {
+            return $this->defaultSearch($data);
+        } catch (PDOException | BlankResult $e) {
+            $data[$this->idField()] = 0;
+            return $this->load($data);
+        }
+    }
+
+    protected function getId(ModelInterface $model): int
+    {
+        return $model->getId();
+    }
+    public function resetIndex(): void
+    {
+        $query = "ALTER TABLE `{$this->getTable()}` AUTO_INCREMENT = 1";
+        $this->getConnection()->query($query);
+    }
+    public function optimize(): void
+    {
+        $query = "OPTIMIZE TABLE `{$this->getTable()}`";
+        $this->getConnection()->query($query);
+    }
+    public function delete(ModelInterface $model): void
+    {
+        $query = "DELETE FROM `{$this->getTable()}` WHERE `{$this->idField()}` = ?";
+        $st = $this->getConnection()->prepare($query);
+        $st->execute([$this->getId($model)]);
+        $this->resetIndex();
+        $this->optimize();
+    }
+
+    protected function fetchOne(string $query, ?array $values = null): ModelInterface
+    {
+        if ($values !== null) {
+            $st = $this->getConnection()->prepare($query);
+            $st->execute($values);
+        } else {
+            $st = $this->getConnection()->query($query);
+        }
+        $row = $st->fetch(PDO::FETCH_ASSOC);
+        if (!$row) {
+            throw new BlankResult();
+        }
+        return $this->load($row);
+    }
+    protected function fetchMany(string $query, ?array $values = null): array
+    {
+        if ($values !== null) {
+            $st = $this->getConnection()->prepare($query);
+            $st->execute($values);
+        } else {
+            $st = $this->getConnection()->query($query);
+        }
+        $rows = $st->fetchAll(PDO::FETCH_ASSOC);
+        if (!$rows) {
+            throw new BlankResult();
+        }
+        return array_map([$this, 'load'], $rows);
+    }
+
+    public function fetchAll(): array
+    {
+        $query = "SELECT * FROM `{$this->getTable()}`";
+        return $this->fetchMany($query);
+    }
+    public function fetchById(int $id): ModelInterface
+    {
+        $query = "SELECT * FROM `{$this->getTable()}` WHERE `{$this->idField()}` = ?";
+        return $this->fetchOne($query, [$id]);
+    }
+}
\ No newline at end of file
diff --git a/api/common/Middleware/Auth.php b/api/common/Middleware/Auth.php
new file mode 100644
index 0000000..0ff78ed
--- /dev/null
+++ b/api/common/Middleware/Auth.php
@@ -0,0 +1,71 @@
+<?php
+namespace ProVM\Common\Middleware;
+
+use Psr\Http\Message\ResponseFactoryInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+use Psr\Log\LoggerInterface;
+
+class Auth
+{
+    public function __construct(ResponseFactoryInterface $factory, LoggerInterface $logger, string $api_key)
+    {
+        $this->setResponseFactory($factory);
+        $this->setLogger($logger);
+        $this->setAPIKey($api_key);
+    }
+
+    protected ResponseFactoryInterface $factory;
+    protected LoggerInterface $logger;
+    protected string $api_key;
+
+    public function getResponseFactory(): ResponseFactoryInterface
+    {
+        return $this->factory;
+    }
+    public function getLogger(): LoggerInterface
+    {
+        return $this->logger;
+    }
+    public function getAPIKey(): string
+    {
+        return $this->api_key;
+    }
+
+    public function setResponseFactory(ResponseFactoryInterface $factory): Auth
+    {
+        $this->factory = $factory;
+        return $this;
+    }
+    public function setLogger(LoggerInterface $logger): Auth
+    {
+        $this->logger = $logger;
+        return $this;
+    }
+    public function setAPIKey(string $key): Auth
+    {
+        $this->api_key = $key;
+        return $this;
+    }
+
+    public function __invoke(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
+    {
+        if ($request->getMethod() === 'OPTIONS') {
+            return $handler->handle($request);
+        }
+        $auths = $request->getHeader('Authorization');
+        foreach ($auths as $auth) {
+            if (str_contains($auth, 'Bearer')) {
+                $key = str_replace('Bearer ', '', $auth);
+                if (sha1($this->getAPIKey()) === $key) {
+                    return $handler->handle($request);
+                }
+            }
+        }
+        $response = $this->getResponseFactory()->createResponse(401);
+        $response->getBody()->write(\Safe\json_encode(['error' => 401, 'message' => 'Incorrect token']));
+        return $response
+            ->withHeader('Content-Type', 'application/json');
+    }
+}
\ No newline at end of file
diff --git a/api/common/Middleware/CORS.php b/api/common/Middleware/CORS.php
new file mode 100644
index 0000000..33361d2
--- /dev/null
+++ b/api/common/Middleware/CORS.php
@@ -0,0 +1,20 @@
+<?php
+namespace ProVM\Common\Middleware;
+
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+
+class CORS
+{
+    public function __invoke(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
+    {
+        $response = $handler->handle($request);
+        $request
+            ->withHeader('Access-Control-Allow-Origin', '*')
+            ->withHeader('Access-Control-Allow-Credentials', 'true')
+            ->withHeader('Access-Control-Allow-Headers', 'Authorization,Accept,Origin,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range')
+            ->withHeader('Access-Control-Allow-Methods', 'GET,POST,OPTIONS,PUT,DELETE,PATCH');
+        return $response;
+    }
+}
\ No newline at end of file
diff --git a/api/common/Service/Attachments.php b/api/common/Service/Attachments.php
new file mode 100644
index 0000000..3843819
--- /dev/null
+++ b/api/common/Service/Attachments.php
@@ -0,0 +1,159 @@
+<?php
+namespace ProVM\Common\Service;
+
+use Ddeboer\Imap\Message\AttachmentInterface;
+use Ddeboer\Imap\MessageInterface;
+use ProVM\Emails\Model\Attachment;
+use ProVM\Emails\Model\Message;
+
+class Attachments
+{
+    public function __construct(Decrypt $decrypt, \ProVM\Emails\Repository\Attachment $repository, string $attachments_folder)
+    {
+        $this->setDecrypt($decrypt);
+        $this->setAttachmentsFolder($attachments_folder);
+    }
+
+    protected string $attachments_folder;
+    protected Decrypt $decrypt;
+    protected \ProVM\Emails\Repository\Attachment $repository;
+
+    public function getAttachmentsFolder(): string
+    {
+        return $this->attachments_folder;
+    }
+    public function getDecrypt(): Decrypt
+    {
+        return $this->decrypt;
+    }
+    public function getRepository(): \ProVM\Emails\Repository\Attachment
+    {
+        return $this->repository;
+    }
+
+    public function setAttachmentsFolder(string $folder): Attachments
+    {
+        $this->attachments_folder = $folder;
+        return $this;
+    }
+    public function setDecrypt(Decrypt $decrypt): Attachments
+    {
+        $this->decrypt = $decrypt;
+        return $this;
+    }
+    public function setRepository(\ProVM\Emails\Repository\Attachment $repository): Attachments
+    {
+        $this->repository = $repository;
+        return $this;
+    }
+
+    public function validateAttachment(AttachmentInterface $remote_attachment): bool
+    {
+        return str_contains($remote_attachment->getFilename(), '.pdf');
+    }
+
+    public function buildAttachment(Message $message, AttachmentInterface $remote_attachment): Attachment
+    {
+        $data = [
+            'message_id' => $message->getId(),
+            'filename' => $this->buildFilename($message, $remote_attachment)
+        ];
+        return $this->getRepository()->create($data);
+    }
+
+    public function exists(Attachment $attachment): bool
+    {
+        $filename = $this->buildFilename($attachment);
+        return file_exists($filename);
+    }
+
+    public function buildFilename(Message $message, AttachmentInterface $attachment): string
+    {
+        $filename = implode(' - ', [
+            $message->getSubject(),
+            $message->getDateTime()->format('Y-m-d'),
+            $attachment->getFilename()
+        ]);
+        return implode(DIRECTORY_SEPARATOR, [
+            $this->getAttachmentsFolder(),
+            $filename
+        ]);
+    }
+
+    public function checkEncrypted(): array
+    {
+        $output = [];
+        foreach ($this->fetchAttachments() as $attachment) {
+            $output[$attachment->getFilename()] = $this->getDecrypt()->isEncrypted($attachment->getRealPath());
+        }
+        return $output;
+    }
+
+    public function fetchAttachments(): array
+    {
+        $files = new \FilesystemIterator($this->getAttachmentsFolder());
+        $attachments = [];
+        foreach ($files as $file) {
+            if ($file->isDir()) {
+                continue;
+            }
+            $attachments []= $file;
+        }
+        return $attachments;
+    }
+    public function fetchDecryptedAttachments(): array
+    {
+        $folder = implode(DIRECTORY_SEPARATOR, [$this->getAttachmentsFolder(), 'decrypted']);
+        $files = new \FilesystemIterator($folder);
+        $attachments = [];
+        foreach ($files as $file) {
+            if ($file->isDir()) {
+                continue;
+            }
+            $attachments []= $file;
+        }
+        return $attachments;
+    }
+    public function fetchFullAttachments(): array
+    {
+        $attachments = $this->fetchAttachments();
+        $output = [];
+        foreach ($attachments as $attachment) {
+            $att = [
+                'original_attachment' => $attachment,
+                'encrypted' => $this->getDecrypt()->isEncrypted($attachment->getRealPath())
+            ];
+            if ($att['encrypted']) {
+                $att['decrypted_attachment'] = $this->getDecryptedAttachment($attachment);
+            }
+            $output []= $att;
+        }
+        return $output;
+    }
+
+    public function getAttachment(string $filename): \SplFileInfo
+    {
+        if (!str_contains($filename, $this->getAttachmentsFolder())) {
+            $filename = implode(DIRECTORY_SEPARATOR, [$this->getAttachmentsFolder(), $filename]);
+        }
+        return new \SplFileInfo($filename);
+    }
+    public function getDecryptedAttachment(\SplFileInfo $info): \SplFileInfo|bool
+    {
+        $new_file = implode(DIRECTORY_SEPARATOR, [$info->getPath(), 'decrypted', $info->getFilename()]);
+        if (!file_exists($new_file)) {
+            return false;
+        }
+        return new \SplFileInfo($new_file);
+    }
+
+    public function removeEncryption(string $filename): \SplFileInfo
+    {
+        $attachment = $this->getAttachment($filename);
+        $new_file = implode(DIRECTORY_SEPARATOR, [$attachment->getPath(), 'decrypted', $attachment->getFilename()]);
+        if ($this->getDecrypt()->runCommand($attachment->getRealPath(), $new_file)) {
+            return new \SplFileInfo($new_file);
+        }
+        return $attachment;
+    }
+}
\ No newline at end of file
diff --git a/api/common/Service/Base.php b/api/common/Service/Base.php
new file mode 100644
index 0000000..7336ed5
--- /dev/null
+++ b/api/common/Service/Base.php
@@ -0,0 +1,27 @@
+<?php
+namespace ProVM\Common\Service;
+
+use Psr\Log\LoggerInterface;
+
+abstract class Base
+{
+    protected LoggerInterface $logger;
+
+    /**
+     * @return LoggerInterface
+     */
+    public function getLogger(): LoggerInterface
+    {
+        return $this->logger;
+    }
+
+    /**
+     * @param LoggerInterface $logger
+     * @return $this
+     */
+    public function setLogger(LoggerInterface $logger): Base
+    {
+        $this->logger = $logger;
+        return $this;
+    }
+}
\ No newline at end of file
diff --git a/api/common/Service/Decrypt.php b/api/common/Service/Decrypt.php
new file mode 100644
index 0000000..1a06f34
--- /dev/null
+++ b/api/common/Service/Decrypt.php
@@ -0,0 +1,91 @@
+<?php
+namespace ProVM\Common\Service;
+
+use Psr\Log\LoggerInterface;
+use function Safe\exec;
+
+class Decrypt
+{
+    public function __construct(LoggerInterface $logger, string $base_command, array $passwords)
+    {
+        $this->setLogger($logger);
+        $this->setBaseCommand($base_command);
+        $this->setPasswords($passwords);
+    }
+
+    protected array $passwords;
+    protected string $base_command;
+    protected LoggerInterface $logger;
+
+    public function getPasswords(): array
+    {
+        return $this->passwords;
+    }
+    public function getBaseCommand(): string
+    {
+        return $this->base_command;
+    }
+    public function getLogger(): LoggerInterface
+    {
+        return $this->logger;
+    }
+
+    public function addPassword(string $password): Decrypt
+    {
+        $this->passwords []= $password;
+        return $this;
+    }
+    public function setPasswords(array $passwords): Decrypt
+    {
+        foreach ($passwords as $password) {
+            $this->addPassword($password);
+        }
+        return $this;
+    }
+    public function setBaseCommand(string $command): Decrypt
+    {
+        $this->base_command = $command;
+        return $this;
+    }
+    public function setLogger(LoggerInterface $logger): Decrypt
+    {
+        $this->logger = $logger;
+        return $this;
+    }
+
+    public function isEncrypted(string $filename): bool
+    {
+        if (!file_exists($filename)) {
+            throw new \InvalidArgumentException("File not found {$filename}");
+        }
+        $escaped_filename = escapeshellarg($filename);
+        $cmd = "{$this->getBaseCommand()} --is-encrypted {$escaped_filename}";
+        exec($cmd, $output, $retcode);
+        return $retcode == 0;
+    }
+
+    public function buildCommand(string $in_file, string $out_file, string $password): string
+    {
+        return $this->getBaseCommand() . ' -password=' . escapeshellarg($password) . ' -decrypt ' . escapeshellarg($in_file) . ' ' . escapeshellarg($out_file);
+    }
+    public function runCommand(string $in_file, string $out_file): bool
+    {
+        if (file_exists($out_file)) {
+            return true;
+        }
+
+        foreach ($this->getPasswords() as $password) {
+            $cmd = $this->buildCommand($in_file, $out_file, $password);
+            exec($cmd, $output, $retcode);
+            $success = $retcode == 0;
+            if ($success) {
+                return true;
+            }
+            if (file_exists($out_file)) {
+                unlink($out_file);
+            }
+            unset($output);
+        }
+        return false;
+    }
+}
\ No newline at end of file
diff --git a/api/common/Service/Emails.php b/api/common/Service/Emails.php
new file mode 100644
index 0000000..85a3c40
--- /dev/null
+++ b/api/common/Service/Emails.php
@@ -0,0 +1,158 @@
+<?php
+namespace ProVM\Common\Service;
+
+use Iterator;
+use Generator;
+use ProVM\Common\Exception\EmptyMailbox;
+use Ddeboer\Imap\MailboxInterface;
+use Ddeboer\Imap\MessageInterface;
+use ProVM\Emails\Repository\Message;
+
+class Emails extends Base
+{
+    public function __construct(Mailboxes $mailboxService, Message $messageRepository, string $attachments_folder)
+    {
+        $this->setMailboxes($mailboxService);
+        $this->setMessageRepository($messageRepository);
+        $this->setAttachmentsFolder($attachments_folder);
+    }
+
+    protected Message $messageRepository;
+    protected Mailboxes $mailboxService;
+    protected string $attachments_folder;
+
+    public function getMailboxes(): Mailboxes
+    {
+        return $this->mailboxService;
+    }
+    public function getMessageRepository(): Message
+    {
+        return $this->messageRepository;
+    }
+    public function getAttachmentsFolder(): string
+    {
+        return $this->attachments_folder;
+    }
+
+    public function setMailboxes(Mailboxes $mailboxService): Emails
+    {
+        $this->mailboxService = $mailboxService;
+        return $this;
+    }
+    public function setMessageRepository(Message $messageRepository): Emails
+    {
+        $this->messageRepository = $messageRepository;
+        return $this;
+    }
+    public function setAttachmentsFolder(string $folder): Emails
+    {
+        $this->attachments_folder = $folder;
+        return $this;
+    }
+
+    //----------------------------------------------------------------
+    // Messages
+
+    public function getMessages(MailboxInterface $mailbox, int $start = 0, ?int $amount = null): array
+    {
+        $output = [];
+        $cnt = 0;
+        $messages = $this->getMessageRepository()->fetchByMailboxAndPosition($mailbox->getName(), $start, $amount ?? 1);
+        if ($messages) {
+            foreach ($messages as $message) {
+                $output []= $message;
+                $cnt ++;
+            }
+        }
+        if ($amount === null or $cnt < $amount) {
+            $messages = $this->getMailboxes()->getMessages($mailbox, $cnt + $start, $amount ?? $mailbox->count());
+            foreach ($messages as $m) {
+                $message = $this->saveMessage($mailbox, $m, $cnt + $start);
+                $cnt ++;
+                if ($message === null) {
+                    continue;
+                }
+                $output []= $message;
+            }
+        }
+        return $output;
+    }
+    public function saveMessage(MailboxInterface $mailbox, MessageInterface $message, int $position): ?\ProVM\Emails\Model\Message
+    {
+        $data = [
+            'mailbox_id' => $mailbox->getId(),
+            'position' => $position,
+            'uid' => $message->getNumber(),
+            'subject' => $message->getSubject(),
+            'from' => $message->getFrom()->getFullAddress(),
+            'date_time' => $message->getDate()->format('Y-m-d H:i:s'),
+        ];
+        return $this->getMessageRepository()->create($data);
+    }
+    public function getValidMessages(MailboxInterface $mailbox, int $start = 0, ?int $amount = null): array
+    {
+        $messages = $this->getMessages($mailbox, $start, $amount);
+        $output = array_filter($messages, function(\ProVM\Emails\Model\Message $message) {
+            return ($message->hasAttachments() and $message->hasValidAttachments());
+        });
+        if ($amount === null or count($output) >= $amount) {
+            return $output;
+        }
+        $cnt = $start + $amount;
+        while (count($output) < $amount) {
+            \Safe\ini_set('max_execution_time', ((int) \Safe\ini_get('max_execution_time')) + $amount * 5);
+            $messages = $this->getMailboxes()->getMessages($mailbox, $start + $amount, $amount);
+            foreach ($messages as $m) {
+                $message = $this->saveMessage($mailbox, $m, $cnt + $start);
+                $cnt ++;
+                if ($message === null) {
+                    continue;
+                }
+                if ($message->hasAttachments() and $message->hasValidAttachments() and count($output) < $amount) {
+                    $output []= $message;
+                }
+            }
+        }
+        return $output;
+    }
+
+    // Attachments
+
+    public function saveAttachments(MessageInterface $message, ?string $extension = null): array
+    {
+        if (!$message->hasAttachments()) {
+            return [];
+        }
+        $attachments = [];
+        foreach ($message->getAttachments() as $attachment) {
+            $this->getLogger()->debug($attachment->getFilename());
+            if ($extension !== null) {
+                $extension = trim($extension, '.');
+                if (!str_contains($attachment->getFilename(), ".{$extension}")) {
+                    continue;
+                }
+            }
+            $filename = implode(DIRECTORY_SEPARATOR, [
+                $this->getAttachmentsFolder(),
+                "{$message->getSubject()} - {$message->getDate()->format('Y-m-d')} - {$attachment->getFilename()}"
+            ]);
+            $this->getLogger()->debug($filename);
+            \Safe\file_put_contents($filename, $attachment->getDecodedContent());
+            $attachments []= $filename;
+        }
+        return $attachments;
+    }
+    public function getAttachments(?string $mailbox = null, int $start = 0, ?int $amount = null, ?string $extension = null): array
+    {
+        if ($mailbox === null) {
+            $mailbox = '/';
+        }
+        $mb = $this->getMailboxes()->get($mailbox);
+        $messages = $this->getMessages($mb, $start, $amount);
+        $attachments = [];
+        foreach ($messages as $message) {
+            $attachments = array_merge($attachments, $this->saveAttachments($message, $extension));
+        }
+        return $attachments;
+    }
+}
\ No newline at end of file
diff --git a/api/common/Service/Install.php b/api/common/Service/Install.php
new file mode 100644
index 0000000..8a5bb02
--- /dev/null
+++ b/api/common/Service/Install.php
@@ -0,0 +1,73 @@
+<?php
+namespace ProVM\Common\Service;
+
+use Psr\Log\LoggerInterface;
+use PDO;
+
+class Install
+{
+    public function __construct(LoggerInterface $logger, PDO $pdo)
+    {
+        $this->setLogger($logger);
+        $this->setConnection($pdo);
+    }
+
+    protected LoggerInterface $logger;
+    protected PDO $connection;
+
+    public function getLogger(): LoggerInterface
+    {
+        return $this->logger;
+    }
+    public function getConnection(): PDO
+    {
+        return $this->connection;
+    }
+    public function setLogger(LoggerInterface $logger): Install
+    {
+        $this->logger = $logger;
+        return $this;
+    }
+    public function setConnection(PDO $pdo): Install
+    {
+        $this->connection = $pdo;
+        return $this;
+    }
+
+    public function run(): void
+    {
+        $tables = [
+            'messages' => [
+                '`mailbox_id` int UNSIGNED NOT NULL',
+                '`position` int UNSIGNED NOT NULL',
+                '`uid` int UNSIGNED NOT NULL PRIMARY KEY',
+                '`subject` varchar(255) NOT NULL',
+                '`from` varchar(100) NOT NULL',
+                '`date_time` datetime NOT NULL',
+                '`has_attachments` int(1) DEFAULT 0',
+                '`valid_attachments` int(1) DEFAULT 0',
+                '`downloaded_attachments` int(1) DEFAULT 0'
+            ],
+            'attachments' => [
+                '`message_uid` int UNSIGNED NOT NULL',
+                '`filename` varchar(255) NOT NULL PRIMARY KEY',
+                '`encrypted` int(1) DEFAULT 0',
+                '`decrypted` int(1) DEFAULT 0',
+                'CONSTRAINT `message_uid_fk` FOREIGN KEY (`message_uid`) REFERENCES `messages` (`uid`)'
+            ],
+            'mailboxes' => [
+                '`'
+            ]
+        ];
+        foreach ($tables as $table => $definitions) {
+            $this->getConnection()->query($this->buildCreateTable($table, $definitions));
+        }
+    }
+    protected function buildCreateTable(string $table_name, array $columns): string
+    {
+        $query = ["CREATE TABLE IF NOT EXISTS `{$table_name}` ("];
+        $query []= implode(',' . PHP_EOL, $columns);
+        $query []= ')';
+        return implode(PHP_EOL, $query);
+    }
+}
\ No newline at end of file
diff --git a/api/common/Service/Mailboxes.php b/api/common/Service/Mailboxes.php
new file mode 100644
index 0000000..3e55e04
--- /dev/null
+++ b/api/common/Service/Mailboxes.php
@@ -0,0 +1,151 @@
+<?php
+namespace ProVM\Common\Service;
+
+use Ddeboer\Imap\Message\AttachmentInterface;
+use Iterator;
+use Generator;
+use Ddeboer\Imap\ConnectionInterface;
+use Ddeboer\Imap\MailboxInterface;
+use Ddeboer\Imap\MessageInterface;
+use ProVM\Common\Exception\EmptyMailbox;
+use ProVM\Common\Exception\Mailbox\Invalid;
+
+class Mailboxes extends Base
+{
+    public function __construct(ConnectionInterface $connection, Attachments $attachments, string $username)
+    {
+        $this->setConnection($connection)
+            ->setAttachments($attachments)
+            ->setUsername($username);
+    }
+
+    protected ConnectionInterface $connection;
+    protected Attachments $attachments;
+    protected string $username;
+
+    public function getConnection(): ConnectionInterface
+    {
+        return $this->connection;
+    }
+    public function getAttachments(): Attachments
+    {
+        return $this->attachments;
+    }
+    public function getUsername(): string
+    {
+        return $this->username;
+    }
+
+    public function setConnection(ConnectionInterface $connection): Mailboxes
+    {
+        $this->connection = $connection;
+        return $this;
+    }
+    public function setAttachments(Attachments $attachments): Mailboxes
+    {
+        $this->attachments = $attachments;
+        return $this;
+    }
+    public function setUsername(string $username): Mailboxes
+    {
+        $this->username = $username;
+        return $this;
+    }
+
+    protected array $mailboxes;
+    public function getAll(): array
+    {
+        if (!isset($this->mailboxes)) {
+            $this->mailboxes = $this->getConnection()->getMailboxes();
+        }
+        return $this->mailboxes;
+    }
+    public function get(string $mailbox): MailboxInterface
+    {
+        if (!$this->getConnection()->hasMailbox($mailbox)) {
+            throw new Invalid();
+        }
+        return $this->getConnection()->getMailbox($mailbox);
+    }
+
+    // Messages
+
+    protected function advanceIterator(Iterator $iterator, int $up_to): Iterator
+    {
+        for ($i = 0; $i < $up_to; $i ++) {
+            $iterator->next();
+        }
+        return $iterator;
+    }
+
+    public function getMessages(MailboxInterface $mailbox, int $start = 0, ?int $amount = null): Generator
+    {
+        if ($mailbox->count() === 0) {
+            $this->getLogger()->notice('No mails found.');
+            throw new EmptyMailbox();
+        }
+        $it = $mailbox->getIterator();
+        if ($amount === null) {
+            $amount = $mailbox->count() - $start;
+        }
+        $it = $this->advanceIterator($it, $start);
+        for ($i = $start; $i < min($start + $amount, $mailbox->count()); $i ++) {
+            yield $it->key() => $it->current();
+            $it->next();
+        }
+    }
+    public function countValid(MailboxInterface $mailbox): int
+    {
+        $cnt = 0;
+        foreach ($mailbox->getIterator() as $message) {
+            if ($this->hasAttachments($message) and $this->validAttachments($message)) {
+                $cnt ++;
+            }
+        }
+        return $cnt;
+    }
+    /**
+     * @param MailboxInterface $mailbox
+     * @param int $uid
+     * @return MessageInterface
+     */
+    public function getMessage(MailboxInterface $mailbox, int $uid): MessageInterface
+    {
+        return $mailbox->getMessage($uid);
+    }
+
+    protected function validateAddress(array $to): bool
+    {
+        foreach ($to as $address) {
+            if (strtolower($address->getAddress()) === strtolower($this->getUsername())) {
+                return true;
+            }
+        }
+        return false;
+    }
+    public function hasAttachments(MessageInterface $message): bool
+    {
+        return ($message->hasAttachments() and $this->validateAddress($message->getTo()));
+    }
+    protected function validateAttachment(AttachmentInterface $attachment): bool
+    {
+        return str_contains($attachment->getFilename(), '.pdf');
+    }
+    public function validAttachments(MessageInterface $message): bool
+    {
+        foreach ($message->getAttachments() as $attachment) {
+            if ($this->validateAttachment($attachment)) {
+                return true;
+            }
+        }
+        return false;
+    }
+    public function downloadAttachments(MessageInterface $message)
+    {
+        foreach ($message->getAttachments() as $attachment) {
+            if ($this->validateAttachment($attachment)) {
+                $attachment->getContent();
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/api/common/Service/Messages.php b/api/common/Service/Messages.php
new file mode 100644
index 0000000..d1b9552
--- /dev/null
+++ b/api/common/Service/Messages.php
@@ -0,0 +1,37 @@
+<?php
+namespace ProVM\Common\Service;
+
+use ProVM\Common\Factory\Model;
+use Psr\Log\LoggerInterface;
+
+class Messages
+{
+    public function __construct(Model $factory, LoggerInterface $logger)
+    {
+        $this->setFactory($factory)
+            ->setLogger($logger);
+    }
+
+    protected Model $factory;
+    protected LoggerInterface $logger;
+
+    public function getFactory(): Model
+    {
+        return $this->factory;
+    }
+    public function getLogger(): LoggerInterface
+    {
+        return $this->logger;
+    }
+
+    public function setFactory(Model $factory): Messages
+    {
+        $this->factory = $factory;
+        return $this;
+    }
+    public function setLogger(LoggerInterface $logger): Messages
+    {
+        $this->logger = $logger;
+        return $this;
+    }
+}
\ No newline at end of file
diff --git a/api/public/index.php b/api/public/index.php
index e8e029a..aed6193 100644
--- a/api/public/index.php
+++ b/api/public/index.php
@@ -4,5 +4,10 @@ $app = require_once implode(DIRECTORY_SEPARATOR, [
     'setup',
     'app.php'
 ]);
-#$app->getContainer()->get(\Psr\Log\LoggerInterface::class)->debug(var_export($app, true));
-$app->run();
+Monolog\ErrorHandler::register($app->getContainer()->get(Psr\Log\LoggerInterface::class));
+try {
+    $app->run();
+} catch (Error | Exception $e) {
+    $app->getContainer()->get(\Psr\Log\LoggerInterface::class)->error($e);
+    throw $e;
+}
diff --git a/api/resources/routes/01_mailboxes.php b/api/resources/routes/01_mailboxes.php
new file mode 100644
index 0000000..b39878e
--- /dev/null
+++ b/api/resources/routes/01_mailboxes.php
@@ -0,0 +1,13 @@
+<?php
+use ProVM\Common\Controller\Mailboxes;
+
+$app->group('/mailboxes', function($app) {
+    $app->post('/register', [Mailboxes::class, 'register']);
+    $app->delete('/unregister', [Mailboxes::class, 'unregister']);
+    $app->get('/registered', [Mailboxes::class, 'registered']);
+    $app->get('[/]', Mailboxes::class);
+});
+
+$app->group('/mailbox/{mailbox_id}', function($app) {
+    $app->get('[/]', [Mailboxes::class, 'get']);
+});
diff --git a/api/resources/routes/02_messages.php b/api/resources/routes/02_messages.php
new file mode 100644
index 0000000..1296b5a
--- /dev/null
+++ b/api/resources/routes/02_messages.php
@@ -0,0 +1,8 @@
+<?php
+use ProVM\Common\Controller\Messages;
+
+$app->group('/messages', function($app) {
+    $app->post('/valid', [Messages::class, 'valid']);
+    $app->put('/grab', [Messages::class, 'grab']);
+    $app->post('[/]', Messages::class);
+});
\ No newline at end of file
diff --git a/api/setup/setups/02_services.php b/api/setup/setups/02_services.php
index 2116a9e..f2ea3ab 100644
--- a/api/setup/setups/02_services.php
+++ b/api/setup/setups/02_services.php
@@ -5,7 +5,7 @@ return [
     \ProVM\Common\Service\Mailboxes::class => function(ContainerInterface $container) {
         return (new \ProVM\Common\Service\Mailboxes(
             $container->get(\Ddeboer\Imap\ConnectionInterface::class),
-            $container->get('emails')->folder,
+            $container->get(\ProVM\Common\Service\Attachments::class),
             $container->get('emails')->username
         ))->setLogger($container->get(\Psr\Log\LoggerInterface::class));
     },
@@ -19,6 +19,7 @@ return [
     \ProVM\Common\Service\Attachments::class => function(ContainerInterface $container) {
         return new \ProVM\Common\Service\Attachments(
             $container->get(\ProVM\Common\Service\Decrypt::class),
+            $container->get(\ProVM\Emails\Repository\Attachment::class),
             $container->get('attachments_folder')
         );
     },
diff --git a/api/setup/setups/03_factories.php b/api/setup/setups/03_factories.php
new file mode 100644
index 0000000..654ca74
--- /dev/null
+++ b/api/setup/setups/03_factories.php
@@ -0,0 +1,17 @@
+<?php
+use Psr\Container\ContainerInterface;
+
+return [
+    \ProVM\Common\Factory\Model::class => function(ContainerInterface $container) {
+        $factory = new \ProVM\Common\Factory\Model($container);
+        $repositories = [
+            'Mailbox' => \ProVM\Emails\Repository\Mailbox::class,
+            'Message' => \ProVM\Emails\Repository\Message::class,
+            'Attachment' => \ProVM\Emails\Repository\Attachment::class,
+            "State\\Mailbox" => \ProVM\Emails\Repository\State\Mailbox::class,
+            "State\\Message" => \ProVM\Emails\Repository\State\Message::class,
+            "State\\Attachment" => \ProVM\Emails\Repository\State\Attachment::class
+        ];
+        return $factory->setRepositories($repositories);
+    }
+];
\ No newline at end of file
diff --git a/api/setup/setups/98_log.php b/api/setup/setups/98_log.php
index eaef107..b81de42 100644
--- a/api/setup/setups/98_log.php
+++ b/api/setup/setups/98_log.php
@@ -2,14 +2,21 @@
 use Psr\Container\ContainerInterface;
 
 return [
+    \Monolog\Handler\DeduplicationHandler::class => function(ContainerInterface $container) {
+        return new \Monolog\Handler\DeduplicationHandler($container->get(\Monolog\Handler\RotatingFileHandler::class));
+    },
     \Monolog\Handler\RotatingFileHandler::class => function(ContainerInterface $container) {
         $handler = new \Monolog\Handler\RotatingFileHandler($container->get('log_file'));
-        $handler->setFormatter($container->get(\Monolog\Formatter\LineFormatter::class));
+        $handler->setFormatter($container->get(\Monolog\Formatter\SyslogFormatter::class));
         return $handler;
     },
     \Psr\Log\LoggerInterface::class => function(ContainerInterface $container) {
         $logger = new \Monolog\Logger('file_logger');
-        $logger->pushHandler($container->get(\Monolog\Handler\RotatingFileHandler::class));
+        $logger->pushHandler($container->get(\Monolog\Handler\DeduplicationHandler::class));
+        //$logger->pushHandler($container->get(\Monolog\Handler\RotatingFileHandler::class));
+        $logger->pushProcessor($container->get(\Monolog\Processor\PsrLogMessageProcessor::class));
+        $logger->pushProcessor($container->get(\Monolog\Processor\IntrospectionProcessor::class));
+        $logger->pushProcessor($container->get(\Monolog\Processor\MemoryUsageProcessor::class));
         return $logger;
     }
 ];
\ No newline at end of file
diff --git a/api/src/Model/Attachment.php b/api/src/Model/Attachment.php
new file mode 100644
index 0000000..d6f562d
--- /dev/null
+++ b/api/src/Model/Attachment.php
@@ -0,0 +1,124 @@
+<?php
+namespace ProVM\Emails\Model;
+
+use ProVM\Common\Define\Model;
+
+class Attachment implements Model
+{
+    protected int $id;
+    protected Message $message;
+    protected string $filename;
+
+    public function getId(): int
+    {
+        return $this->id;
+    }
+    public function getMessage(): Message
+    {
+        return $this->message;
+    }
+    public function getFilename(): string
+    {
+        return $this->filename;
+    }
+
+    public function setId(int $id): Attachment
+    {
+        $this->id = $id;
+        return $this;
+    }
+    public function setMessage(Message $message): Attachment
+    {
+        $this->message = $message;
+        return $this;
+    }
+    public function setFilename(string $filename): Attachment
+    {
+        $this->filename = $filename;
+        return $this;
+    }
+
+    protected \ProVM\Emails\Repository\State\Attachment $stateRepository;
+    public function getStateRepository(): \ProVM\Emails\Repository\State\Attachment
+    {
+        return $this->stateRepository;
+    }
+    public function setStateRepository(\ProVM\Emails\Repository\State\Attachment $repository): Attachment
+    {
+        $this->stateRepository = $repository;
+        return $this;
+    }
+
+    protected array $states;
+    public function getStates(): array
+    {
+        if (!isset($this->states)) {
+            $this->setStates($this->getStateRepository()->fetchByAttachment($this->getId()));
+        }
+        return $this->states;
+    }
+    public function getState(string $name): State\Attachment
+    {
+        return $this->getStates()[$name];
+    }
+    public function addState(State\Attachment $state): Attachment
+    {
+        $this->states[$state->getName()] = $state;
+        return $this;
+    }
+    public function setStates(array $states): Attachment
+    {
+        foreach ($states as $state) {
+            $this->addState($state);
+        }
+        return $this;
+    }
+    protected function newState(string $name): Attachment
+    {
+        $this->addState((new State\Attachment())
+            ->setName($name)
+            ->setAttachment($this)
+        );
+        return $this;
+    }
+
+    public function isEncrypted(): bool
+    {
+        return $this->getState('encrypted')->getValue() ?? false;
+    }
+    public function isDecrypted(): bool
+    {
+        return $this->getState('encrypted')->getValue() ?? false;
+    }
+    public function itIsEncrypted(): Attachment
+    {
+        try {
+            $this->getState('encrypted')->setValue(true);
+        } catch (\Exception $e) {
+            $this->newState('encrypted');
+            $this->getState('encrypted')->setValue(true);
+        }
+        return $this;
+    }
+    public function itIsDecrypted(): Attachment
+    {
+        try {
+            $this->getState('decrypted')->setValue(true);
+        } catch (\Exception $e) {
+            $this->newState('encrypted');
+            $this->getState('decrypted')->setValue(true);
+        }
+        return $this;
+    }
+
+    public function toArray(): array
+    {
+        return [
+            'id' => $this->getId(),
+            'message' => $this->getMessage()->toArray(),
+            'filename' => $this->getFilename(),
+            'encrypted' => $this->isEncrypted(),
+            'decrypted' => $this->isDecrypted()
+        ];
+    }
+}
\ No newline at end of file
diff --git a/api/src/Model/Mailbox.php b/api/src/Model/Mailbox.php
new file mode 100644
index 0000000..7b86bcf
--- /dev/null
+++ b/api/src/Model/Mailbox.php
@@ -0,0 +1,97 @@
+<?php
+namespace ProVM\Emails\Model;
+
+use DateTimeInterface;
+use ProVM\Common\Define\Model;
+use ProVM\Common\Exception\Database\BlankResult;
+use Safe\DateTimeImmutable;
+
+class Mailbox implements Model
+{
+    protected int $id;
+    protected string $name;
+
+    public function getId(): int
+    {
+        return $this->id;
+    }
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    public function setId(int $id): Mailbox
+    {
+        $this->id = $id;
+        return $this;
+    }
+    public function setName(string $name): Mailbox
+    {
+        $this->name = $name;
+        return $this;
+    }
+
+    protected \ProVM\Emails\Repository\State\Mailbox $stateRepository;
+
+    public function getStateRepository(): \ProVM\Emails\Repository\State\Mailbox
+    {
+        return $this->stateRepository;
+    }
+    public function setStateRepository(\ProVM\Emails\Repository\State\Mailbox $repository): Mailbox
+    {
+        $this->stateRepository = $repository;
+        return $this;
+    }
+
+    protected array $states;
+    public function getStates(): array
+    {
+        if (!isset($this->states)) {
+            try {
+                $this->setStates($this->getStateRepository()->fetchByMailbox($this->getId()));
+            } catch (BlankResult $e) {
+                return [];
+            }
+        }
+        return $this->states;
+    }
+    public function addState(\ProVM\Emails\Model\State\Mailbox $state): Mailbox
+    {
+        $this->states []= $state;
+        return $this;
+    }
+    public function setStates(array $states): Mailbox
+    {
+        foreach ($states as $state) {
+            $this->addState($state);
+        }
+        return $this;
+    }
+
+    public function lastChecked(): ?DateTimeInterface
+    {
+        if (count($this->getStates()) == 0) {
+            return null;
+        }
+        return $this->getStates()[array_key_last($this->getStates())]->getDateTime();
+    }
+    public function lastCount(): int
+    {
+        if (count($this->getStates()) == 0) {
+            return 0;
+        }
+        return $this->getStates()[array_key_last($this->getStates())]->getCount();
+    }
+
+    public function toArray(): array
+    {
+        return [
+            'id' => $this->getId(),
+            'name' => $this->getName(),
+            'last_checked' => [
+                'date' => $this->lastChecked() ?? 'never',
+                'count' => $this->lastCount() ?? 0
+            ]
+        ];
+    }
+}
\ No newline at end of file
diff --git a/api/src/Model/Message.php b/api/src/Model/Message.php
new file mode 100644
index 0000000..2de4d68
--- /dev/null
+++ b/api/src/Model/Message.php
@@ -0,0 +1,212 @@
+<?php
+namespace ProVM\Emails\Model;
+
+use DateTimeInterface;
+use ProVM\Common\Define\Model;
+use ProVM\Common\Exception\Database\BlankResult;
+
+class Message implements Model
+{
+    protected int $id;
+    protected Mailbox $mailbox;
+    protected int $position;
+    protected string $uid;
+    protected string $subject;
+    protected string $from;
+    protected DateTimeInterface $dateTime;
+
+    public function getId(): int
+    {
+        return $this->id;
+    }
+    public function getMailbox(): Mailbox
+    {
+        return $this->mailbox;
+    }
+    public function getPosition(): int
+    {
+        return $this->position;
+    }
+    public function getUID(): string
+    {
+        return $this->uid;
+    }
+    public function getSubject(): string
+    {
+        return $this->subject;
+    }
+    public function getFrom(): string
+    {
+        return $this->from;
+    }
+    public function getDateTime(): DateTimeInterface
+    {
+        return $this->dateTime;
+    }
+
+    public function setId(int $id): Message
+    {
+        $this->id = $id;
+        return $this;
+    }
+    public function setMailbox(Mailbox $mailbox): Message
+    {
+        $this->mailbox = $mailbox;
+        return $this;
+    }
+    public function setPosition(int $position): Message
+    {
+        $this->position = $position;
+        return $this;
+    }
+    public function setUID(string $uid): Message
+    {
+        $this->uid = $uid;
+        return $this;
+    }
+    public function setSubject(string $subject): Message
+    {
+        $this->subject = $subject;
+        return $this;
+    }
+    public function setFrom(string $from): Message
+    {
+        $this->from = $from;
+        return $this;
+    }
+    public function setDateTime(DateTimeInterface $dateTime): Message
+    {
+        $this->dateTime = $dateTime;
+        return $this;
+    }
+
+    protected \ProVM\Common\Factory\Model $factory;
+
+    public function getFactory(): \ProVM\Common\Factory\Model
+    {
+        return $this->factory;
+    }
+
+    public function setFactory(\ProVM\Common\Factory\Model $factory): Message
+    {
+        $this->factory = $factory;
+        return $this;
+    }
+
+    protected array $states;
+
+    public function getStates(): array
+    {
+        if (!isset($this->states)) {
+            try {
+                $this->setStates($this->getFactory()->find(\ProVM\Emails\Model\State\Message::class)->fetchByMessage($this->getId()));
+            } catch (BlankResult $e) {
+                return [];
+            }
+        }
+        return $this->states;
+    }
+    public function getState(string $name): \ProVM\Emails\Model\State\Message
+    {
+        return $this->getStates()[$name];
+    }
+    public function addState(\ProVM\Emails\Model\State\Message $state): Message
+    {
+        $this->states[$state->getName()] = $state;
+        return $this;
+    }
+    public function setStates(array $states): Message
+    {
+        foreach ($states as $state) {
+            $this->addState($state);
+        }
+        return $this;
+    }
+    protected function newState(string $name): Message
+    {
+        $this->addState((new \ProVM\Emails\Model\State\Message())
+            ->setName($name)
+            ->setMessage($this)
+        );
+        return $this;
+    }
+
+    public function hasAttachments(): bool
+    {
+        return $this->getState('has_attachments')->getValue() ?? false;
+    }
+    public function hasValidAttachments(): bool
+    {
+        return $this->getState('valid_attachments')->getValue() ?? false;
+    }
+    public function hasDownloadedAttachments(): bool
+    {
+        return $this->getState('downloaded_attachments')->getValue() ?? false;
+    }
+
+    public function doesHaveAttachments(): Message
+    {
+        if (!isset($this->getStates()['has_attachments'])) {
+            $this->newState('has_attachments');
+        }
+        $this->getState('has_attachments')->setValue(true);
+        return $this;
+    }
+    public function doesHaveValidAttachments(): Message
+    {
+        if (!isset($this->getStates()['valid_attachments'])) {
+            $this->newState('valid_attachments');
+        }
+        $this->getState('valid_attachments')->setValue(true);
+        return $this;
+    }
+    public function doesHaveDownloadedAttachments(): Message
+    {
+        if (!isset($this->getStates()['downloaded_attachments'])) {
+            $this->newState('downloaded_attachments');
+        }
+        $this->getState('downloaded_attachments')->setValue(true);
+        return $this;
+    }
+
+    protected array $attachments;
+    public function getAttachments(): array
+    {
+        if (!isset($this->attachments)) {
+            try {
+                $this->setAttachments($this->getFactory()->find(Attachment::class)->fetchByMessage($this->getId()));
+            } catch (BlankResult $e) {
+                return [];
+            }
+        }
+        return $this->attachments ?? [];
+    }
+    public function addAttachment(Attachment $attachment): Message
+    {
+        $this->attachments []= $attachment;
+        return $this;
+    }
+    public function setAttachments(array $attachments): Message
+    {
+        foreach ($attachments as $attachment) {
+            $this->addAttachment($attachment);
+        }
+        return $this;
+    }
+
+    public function toArray(): array
+    {
+        return [
+            'id' => $this->getId(),
+            'uid' => $this->getUID(),
+            'subject' => $this->getSubject(),
+            'from' => $this->getFrom(),
+            'date_time' => $this->getDateTime()->format('Y-m-d H:i:s'),
+            'states' => [
+                'has_attachments' => $this->hasAttachments(),
+                'valid_attachments' => $this->hasValidAttachments(),
+                'downloaded_attachments' => $this->hasDownloadedAttachments()
+            ]
+        ];
+    }
+}
\ No newline at end of file
diff --git a/api/src/Model/State/Attachment.php b/api/src/Model/State/Attachment.php
new file mode 100644
index 0000000..3838098
--- /dev/null
+++ b/api/src/Model/State/Attachment.php
@@ -0,0 +1,50 @@
+<?php
+namespace ProVM\Emails\Model\State;
+
+use ProVM\Common\Define\Model;
+
+class Attachment implements Model
+{
+    protected int $id;
+    protected \ProVM\Emails\Model\Attachment $attachment;
+    protected string $name;
+    protected bool $value;
+
+    public function getId(): int
+    {
+        return $this->id;
+    }
+    public function getAttachment(): \ProVM\Emails\Model\Attachment
+    {
+        return $this->attachment;
+    }
+    public function getName(): string
+    {
+        return $this->name;
+    }
+    public function getValue(): bool
+    {
+        return $this->value;
+    }
+
+    public function setId(int $id): Attachment
+    {
+        $this->id = $id;
+        return $this;
+    }
+    public function setAttachment(\ProVM\Emails\Model\Attachment $attachment): Attachment
+    {
+        $this->attachment = $attachment;
+        return $this;
+    }
+    public function setName(string $name): Attachment
+    {
+        $this->name = $name;
+        return $this;
+    }
+    public function setValue(bool $value): Attachment
+    {
+        $this->value = $value;
+        return $this;
+    }
+}
\ No newline at end of file
diff --git a/api/src/Model/State/Mailbox.php b/api/src/Model/State/Mailbox.php
new file mode 100644
index 0000000..35d5df6
--- /dev/null
+++ b/api/src/Model/State/Mailbox.php
@@ -0,0 +1,68 @@
+<?php
+namespace ProVM\Emails\Model\State;
+
+use DateTimeInterface;
+use ProVM\Common\Define\Model;
+
+class Mailbox implements Model
+{
+    protected int $id;
+    protected \ProVM\Emails\Model\Mailbox $mailbox;
+    protected DateTimeInterface $dateTime;
+    protected int $count;
+    protected array $uids;
+
+    public function getId(): int
+    {
+        return $this->id;
+    }
+    public function getMailbox(): \ProVM\Emails\Model\Mailbox
+    {
+        return $this->mailbox;
+    }
+    public function getDateTime(): DateTimeInterface
+    {
+        return $this->dateTime;
+    }
+    public function getCount(): int
+    {
+        return $this->count;
+    }
+    public function getUIDs(): array
+    {
+        return $this->uids;
+    }
+
+    public function setId(int $id): Mailbox
+    {
+        $this->id = $id;
+        return $this;
+    }
+    public function setMailbox(\ProVM\Emails\Model\Mailbox $mailbox): Mailbox
+    {
+        $this->mailbox = $mailbox;
+        return $this;
+    }
+    public function setDateTime(DateTimeInterface $dateTime): Mailbox
+    {
+        $this->dateTime = $dateTime;
+        return $this;
+    }
+    public function setCount(int $count): Mailbox
+    {
+        $this->count = $count;
+        return $this;
+    }
+    public function addUID(string $uid): Mailbox
+    {
+        $this->uids []= $uid;
+        return $this;
+    }
+    public function setUIDs(array $uids): Mailbox
+    {
+        foreach ($uids as $uid) {
+            $this->addUID($uid);
+        }
+        return $this;
+    }
+}
\ No newline at end of file
diff --git a/api/src/Model/State/Message.php b/api/src/Model/State/Message.php
new file mode 100644
index 0000000..c1fab5c
--- /dev/null
+++ b/api/src/Model/State/Message.php
@@ -0,0 +1,50 @@
+<?php
+namespace ProVM\Emails\Model\State;
+
+use ProVM\Common\Define\Model;
+
+class Message implements Model
+{
+    protected int $id;
+    protected \ProVM\Emails\Model\Message $message;
+    protected string $name;
+    protected bool $value;
+
+    public function getId(): int
+    {
+        return $this->id;
+    }
+    public function getMessage(): \ProVM\Emails\Model\Message
+    {
+        return $this->message;
+    }
+    public function getName(): string
+    {
+        return $this->name;
+    }
+    public function getValue(): bool
+    {
+        return $this->value;
+    }
+
+    public function setId(int $id): Message
+    {
+        $this->id = $id;
+        return $this;
+    }
+    public function setMessage(\ProVM\Emails\Model\Message $message): Message
+    {
+        $this->message = $message;
+        return $this;
+    }
+    public function setName(string $name): Message
+    {
+        $this->name = $name;
+        return $this;
+    }
+    public function setValue(bool $value): Message
+    {
+        $this->value = $value;
+        return $this;
+    }
+}
\ No newline at end of file
diff --git a/api/src/Repository/Attachment.php b/api/src/Repository/Attachment.php
new file mode 100644
index 0000000..59e0c06
--- /dev/null
+++ b/api/src/Repository/Attachment.php
@@ -0,0 +1,95 @@
+<?php
+namespace ProVM\Emails\Repository;
+
+use PDO;
+use Psr\Log\LoggerInterface;
+use ProVM\Common\Define\Model as ModelInterface;
+use ProVM\Common\Implement\Repository;
+
+class Attachment extends Repository
+{
+    public function __construct(PDO $connection, LoggerInterface $logger, State\Attachment $stateRepository)
+    {
+        parent::__construct($connection, $logger);
+        $this->setStateRepository($stateRepository)
+            ->setTable('attachments');
+    }
+    protected State\Attachment $stateRepository;
+
+    public function getStateRepository(): State\Attachment
+    {
+        return $this->stateRepository;
+    }
+
+    public function setStateRepository(State\Attachment $repository): Attachment
+    {
+        $this->stateRepository = $repository;
+        return $this;
+    }
+
+    protected function idField(): string
+    {
+        return 'filename';
+    }
+
+    protected function fieldsForInsert(): array
+    {
+        return array_merge($this->fieldsForUpdate(), ['filename']);
+    }
+    protected function fieldsForUpdate(): array
+    {
+        return [
+            'message_id'
+        ];
+    }
+    protected function fieldsForCreate(): array
+    {
+        return $this->fieldsForInsert();
+    }
+    protected function valuesForUpdate(ModelInterface $model): array
+    {
+        return [
+            $model->getMessage()->getId(),
+            $model->getFilename()
+        ];
+    }
+    protected function valuesForInsert(ModelInterface $model): array
+    {
+        return $this->valuesForUpdate($model);
+    }
+    protected function defaultFind(ModelInterface $model): ModelInterface
+    {
+        return $this->fetchByFilename($model->getFilename());
+    }
+    protected function valuesForCreate(array $data): array
+    {
+        return [
+            $data['message_id'],
+            $data['filename']
+        ];
+    }
+    protected function defaultSearch(array $data): ModelInterface
+    {
+        return $this->fetchByFilename($data['filename']);
+    }
+
+    public function load(array $row): \ProVM\Emails\Model\Attachment
+    {
+        $model = new \ProVM\Emails\Model\Attachment();
+        $model
+            ->setFilename($row['filename'])
+            ->setStateRepository($this->getStateRepository());
+        return $model;
+    }
+
+    public function fetchByFilename(string $filename): \ProVM\Emails\Model\Attachment
+    {
+        $query = "SELECT * FROM {$this->getTable()} WHERE filename = ?";
+        return $this->fetchOne($query, [$filename]);
+    }
+    public function fetchByMessage(int $message_id): array
+    {
+        $query = "SELECT * FROM {$this->getTable()} WHERE message_id = ?";
+        return $this->fetchMany($query, [$message_id]);
+    }
+}
\ No newline at end of file
diff --git a/api/src/Repository/Mailbox.php b/api/src/Repository/Mailbox.php
new file mode 100644
index 0000000..3f470e3
--- /dev/null
+++ b/api/src/Repository/Mailbox.php
@@ -0,0 +1,85 @@
+<?php
+namespace ProVM\Emails\Repository;
+
+use PDO;
+use ProVM\Common\Define\Model;
+use Psr\Log\LoggerInterface;
+use ProVM\Common\Implement\Repository;
+
+class Mailbox extends Repository
+{
+    public function __construct(PDO $connection, LoggerInterface $logger, State\Mailbox $states)
+    {
+        parent::__construct($connection, $logger);
+        $this->setStates($states)
+            ->setTable('mailboxes');
+    }
+
+    protected State\Mailbox $stateRepository;
+
+    public function getStates(): State\Mailbox
+    {
+        return $this->stateRepository;
+    }
+
+    public function setStates(State\Mailbox $states): Mailbox
+    {
+        $this->stateRepository = $states;
+        return $this;
+    }
+
+    protected function fieldsForUpdate(): array
+    {
+        return $this->fieldsForInsert();
+    }
+    protected function fieldsForInsert(): array
+    {
+        return [
+            'name'
+        ];
+    }
+    protected function fieldsForCreate(): array
+    {
+        return $this->fieldsForInsert();
+    }
+    protected function valuesForInsert(Model $model): array
+    {
+        return [
+            $model->getName()
+        ];
+    }
+    protected function defaultFind(Model $model): Model
+    {
+        return $this->fetchByName($model->getName());
+    }
+    protected function valuesForUpdate(Model $model): array
+    {
+        return array_merge($this->valuesForInsert($model), [
+            $model->getId()
+        ]);
+    }
+    protected function valuesForCreate(array $data): array
+    {
+        return [
+            $data['name']
+        ];
+    }
+    protected function defaultSearch(array $data): Model
+    {
+        return $this->fetchByName($data['name']);
+    }
+
+    public function load(array $row): \ProVM\Emails\Model\Mailbox
+    {
+        return (new \ProVM\Emails\Model\Mailbox())
+            ->setId($row['id'])
+            ->setName($row['name'])
+            ->setStateRepository($this->getStates());
+    }
+
+    public function fetchByName(string $name): \ProVM\Emails\Model\Mailbox
+    {
+        $query = "SELECT * FROM `{$this->getTable()}` WHERE `name` = ?";
+        return $this->fetchOne($query, [$name]);
+    }
+}
\ No newline at end of file
diff --git a/api/src/Repository/Message.php b/api/src/Repository/Message.php
new file mode 100644
index 0000000..a0389e3
--- /dev/null
+++ b/api/src/Repository/Message.php
@@ -0,0 +1,155 @@
+<?php
+namespace ProVM\Emails\Repository;
+
+use PDO;
+use PDOException;
+use Exception;
+use ProVM\Common\Define\Model;
+use ProVM\Common\Exception\Database\BlankResult;
+use Psr\Log\LoggerInterface;
+use ProVM\Common\Implement\Repository;
+use Safe\DateTimeImmutable;
+use Safe\Exceptions\ErrorfuncException;
+
+class Message extends Repository
+{
+    public function __construct(PDO $connection, LoggerInterface $logger, \ProVM\Common\Factory\Model $factory)
+    {
+        parent::__construct($connection, $logger);
+        $this->setTable('messages')
+            ->setFactory($factory);
+    }
+
+    protected \ProVM\Common\Factory\Model $factory;
+    public function getFactory(): \ProVM\Common\Factory\Model
+    {
+        return $this->factory;
+    }
+    public function setFactory(\ProVM\Common\Factory\Model $factory): Message
+    {
+        $this->factory = $factory;
+        return $this;
+    }
+
+    protected function fieldsForUpdate(): array
+    {
+        return $this->fieldsForInsert();
+    }
+    protected function fieldsForInsert(): array
+    {
+        return [
+            'uid',
+            'mailbox_id',
+            'position',
+            'subject',
+            'from',
+            'date_time'
+        ];
+    }
+    protected function fieldsForCreate(): array
+    {
+        return $this->fieldsForUpdate();
+    }
+    protected function valuesForUpdate(Model $model): array
+    {
+        return array_merge($this->valuesForInsert($model), [
+            $model->getId()
+        ]);
+    }
+    protected function valuesForInsert(Model $model): array
+    {
+        return [
+            $model->getUID(),
+            $model->getMailbox()->getId(),
+            $model->getPosition(),
+            $model->getSubject(),
+            $model->getFrom(),
+            $model->getDateTime()->format('Y-m-d H:i:s')
+        ];
+    }
+    protected function defaultFind(Model $model): Model
+    {
+        return $this->fetchByUID($model->getUID());
+    }
+
+    protected function valuesForCreate(array $data): array
+    {
+        return [
+            $data['uid'],
+            $data['mailbox_id'],
+            $data['position'],
+            $data['subject'],
+            $data['from'],
+            $data['date_time']
+        ];
+    }
+    protected function defaultSearch(array $data): Model
+    {
+        return $this->fetchByUID($data['uid']);
+    }
+
+    /**
+     * @param array $row
+     * @return \ProVM\Emails\Model\Message
+     */
+    public function load(array $row): \ProVM\Emails\Model\Message
+    {
+        $model = new \ProVM\Emails\Model\Message();
+        $model
+            ->setId($row['id'])
+            ->setUID($row['uid'])
+            ->setMailbox($this->getFactory()->find(\ProVM\Emails\Model\Mailbox::class)->fetchById($row['mailbox_id']))
+            ->setPosition($row['position'])
+            ->setSubject($row['subject'])
+            ->setFrom($row['from'])
+            ->setFactory($this->getFactory());
+        try {
+            $model->setDateTime(new DateTimeImmutable($row['date_time']));
+        } catch (Exception | ErrorfuncException $e) {
+            $this->getLogger()->error($e);
+        }
+        return $model;
+    }
+
+    public function save(Model &$model): void
+    {
+        parent::save($model);
+        $valid_states = [
+            'has_attachments',
+            'valid_attachments',
+            'downloaded_attachments'
+        ];
+        foreach ($valid_states as $state_name) {
+            try {
+                $model->getState($state_name);
+            } catch (\Exception $e) {
+                $data = [
+                    'message_id' => $model->getId(),
+                    'name' => $state_name
+                ];
+                $state = $this->getFactory()->find(\ProVM\Emails\Model\State\Message::class)->create($data);
+                $model->addState($state);
+            }
+        }
+        foreach ($model->getStates() as $state) {
+            $state->setMessage($model);
+            $this->getFactory()->find(\ProVM\Emails\Model\State\Message::class)->save($state);
+        }
+    }
+
+    public function fetchByUID(string $uid): \ProVM\Emails\Model\Message
+    {
+        $query = "SELECT * FROM `{$this->getTable()}` WHERE `uid` = ?";
+        return $this->fetchOne($query, [$uid]);
+    }
+    public function fetchByMailbox(int $mailbox_id): array
+    {
+        $query = "SELECT * FROM {$this->getTable()} WHERE mailbox_id = ?";
+        return $this->fetchMany($query, [$mailbox_id]);
+    }
+    public function fetchByMailboxAndPosition(int $mailbox_id, int $start, int $amount): array
+    {
+        $query = "SELECT * FROM {$this->getTable()} WHERE mailbox_id = ? AND position BETWEEN ? AND ? LIMIT {$amount}";
+        return $this->fetchMany($query, [$mailbox_id, $start, $start + $amount]);
+    }
+}
\ No newline at end of file
diff --git a/api/src/Repository/State/Attachment.php b/api/src/Repository/State/Attachment.php
new file mode 100644
index 0000000..9a40027
--- /dev/null
+++ b/api/src/Repository/State/Attachment.php
@@ -0,0 +1,80 @@
+<?php
+namespace ProVM\Emails\Repository\State;
+
+use PDO;
+use ProVM\Common\Define\Model;
+use ProVM\Common\Implement\Repository;
+use Psr\Log\LoggerInterface;
+
+class Attachment extends Repository
+{
+    public function __construct(PDO $connection, LoggerInterface $logger)
+    {
+        parent::__construct($connection, $logger);
+        $this->setTable('attachments_states');
+    }
+
+    protected function fieldsForInsert(): array
+    {
+        return [
+            'attachment_id',
+            'name',
+            'value'
+        ];
+    }
+    protected function valuesForInsert(Model $model): array
+    {
+        return [
+            $model->getAttachment()->getId(),
+            $model->getName(),
+            $model->getValue() ? 1 : 0
+        ];
+    }
+    protected function fieldsForUpdate(): array
+    {
+        return $this->fieldsForInsert();
+    }
+    protected function defaultFind(Model $model): Model
+    {
+        return $this->fetchByAttachmentAndName($model->getAttachment()->getId(), $model->getName());
+    }
+    protected function valuesForUpdate(Model $model): array
+    {
+        return array_merge($this->valuesForInsert($model), [$model->getId()]);
+    }
+    protected function fieldsForCreate(): array
+    {
+        return $this->fieldsForInsert();
+    }
+    protected function valuesForCreate(array $data): array
+    {
+        return [
+            $data['attachment_id'],
+            $data['name'],
+            $data['value'] ? 1 : 0
+        ];
+    }
+    protected function defaultSearch(array $data): Model
+    {
+        return $this->fetchByAttachmentAndName($data['attachment_id'], $data['name']);
+    }
+
+    public function load(array $row): \ProVM\Emails\Model\State\Attachment
+    {
+        return (new \ProVM\Emails\Model\State\Attachment())
+            ->setId($row['id'])
+            ->setName($row['name'])
+            ->setValue($row['value'] !== 0);
+    }
+
+    public function fetchByAttachment(int $attachment_id): array
+    {
+        $query = "SELECT * FROM `{$this->getTable()}` WHERE `attachment_id` = ?";
+        return $this->fetchMany($query, [$attachment_id]);
+    }
+    public function fetchByAttachmentAndName(int $attachment_id, string $name): \ProVM\Emails\Model\State\Attachment
+    {
+        $query = "SELECT * FROM `{$this->getTable()}` WHERE `attachment_id` = ? AND `name` = ?";
+        return $this->fetchOne($query, [$attachment_id, $name]);
+    }
+}
\ No newline at end of file
diff --git a/api/src/Repository/State/Mailbox.php b/api/src/Repository/State/Mailbox.php
new file mode 100644
index 0000000..7d498d0
--- /dev/null
+++ b/api/src/Repository/State/Mailbox.php
@@ -0,0 +1,102 @@
+<?php
+namespace ProVM\Emails\Repository\State;
+
+use PDO;
+use Psr\Log\LoggerInterface;
+use Safe\DateTimeImmutable;
+use ProVM\Common\Define\Model;
+use ProVM\Common\Implement\Repository;
+
+class Mailbox extends Repository
+{
+    public function __construct(PDO $connection, LoggerInterface $logger, \ProVM\Common\Factory\Model $factory)
+    {
+        parent::__construct($connection, $logger);
+        $this->setTable('mailboxes_states')
+            ->setFactory($factory);
+    }
+
+    protected \ProVM\Common\Factory\Model $factory;
+
+    public function getFactory(): \ProVM\Common\Factory\Model
+    {
+        return $this->factory;
+    }
+    public function setFactory(\ProVM\Common\Factory\Model $factory): Mailbox
+    {
+        $this->factory = $factory;
+        return $this;
+    }
+
+    protected function fieldsForUpdate(): array
+    {
+        return $this->fieldsForInsert();
+    }
+    protected function valuesForUpdate(Model $model): array
+    {
+        return array_merge($this->valuesForInsert($model), [$model->getId()]);
+    }
+    protected function fieldsForInsert(): array
+    {
+        return [
+            'mailbox_id',
+            'date_time',
+            'count',
+            'uids'
+        ];
+    }
+    protected function valuesForInsert(Model $model): array
+    {
+        return [
+            $model->getMailbox()->getId(),
+            $model->getDateTime()->format('Y-m-d H:i:s'),
+            $model->getCount(),
+            serialize($model->getUIDs())
+        ];
+    }
+    protected function defaultFind(Model $model): Model
+    {
+        return $this->fetchByMailboxAndDate($model->getMailbox()->getId(), $model->getDateTime()->format('Y-m-d H:i:s'));
+    }
+    protected function fieldsForCreate(): array
+    {
+        return $this->fieldsForInsert();
+    }
+    protected function valuesForCreate(array $data): array
+    {
+        return [
+            $data['mailbox_id'],
+            $data['date_time'],
+            $data['count'],
+            $data['uids']
+        ];
+    }
+    protected function defaultSearch(array $data): Model
+    {
+        return $this->fetchByMailboxAndDate($data['mailbox_id'], $data['date_time']);
+    }
+
+    public function load(array $row): \ProVM\Emails\Model\State\Mailbox
+    {
+        return (new \ProVM\Emails\Model\State\Mailbox())
+            ->setId($row['id'])
+            ->setMailbox($this->getFactory()->find(\ProVM\Emails\Model\Mailbox::class)->fetchById($row['mailbox_id']))
+            ->setDateTime(new DateTimeImmutable($row['date_time']))
+            ->setCount($row['count'])
+            ->setUIDs(unserialize($row['uids']));
+    }
+
+    public function fetchByMailbox(int $mailbox_id): array
+    {
+        $query = "SELECT * FROM `{$this->getTable()}` WHERE `mailbox_id` = ?";
+        return $this->fetchMany($query, [$mailbox_id]);
+    }
+    public function fetchByMailboxAndDate(int $mailbox_id, \DateTimeInterface | string $date_time): \ProVM\Emails\Model\State\Mailbox
+    {
+        if (!is_string($date_time)) {
+            $date_time = $date_time->format('Y-m-d H:i:s');
+        }
+        $query = "SELECT * FROM `{$this->getTable()}` WHERE `mailbox_id` = ? AND `date_time` = ?";
+        return $this->fetchOne($query, [$mailbox_id, $date_time]);
+    }
+}
\ No newline at end of file
diff --git a/api/src/Repository/State/Message.php b/api/src/Repository/State/Message.php
new file mode 100644
index 0000000..fda78e5
--- /dev/null
+++ b/api/src/Repository/State/Message.php
@@ -0,0 +1,80 @@
+<?php
+namespace ProVM\Emails\Repository\State;
+
+use PDO;
+use ProVM\Common\Define\Model;
+use Psr\Log\LoggerInterface;
+use ProVM\Common\Implement\Repository;
+
+class Message extends Repository
+{
+    public function __construct(PDO $connection, LoggerInterface $logger)
+    {
+        parent::__construct($connection, $logger);
+        $this->setTable('messages_states');
+    }
+
+    protected function fieldsForUpdate(): array
+    {
+        return $this->fieldsForInsert();
+    }
+    protected function valuesForUpdate(Model $model): array
+    {
+        return array_merge($this->valuesForInsert($model), [$model->getId()]);
+    }
+    public function fieldsForInsert(): array
+    {
+        return [
+            'message_id',
+            'name',
+            'value'
+        ];
+    }
+    protected function valuesForInsert(Model $model): array
+    {
+        return [
+            $model->getMessage()->getId(),
+            $model->getName(),
+            $model->getValue() ? 1 : 0
+        ];
+    }
+    protected function defaultFind(Model $model): Model
+    {
+        return $this->fetchByMessageAndName($model->getMessage()->getId(), $model->getName());
+    }
+    protected function fieldsForCreate(): array
+    {
+        return $this->fieldsForInsert();
+    }
+    protected function valuesForCreate(array $data): array
+    {
+        return [
+            $data['message_id'],
+            $data['name'],
+            $data['value'] ? 1 : 0
+        ];
+    }
+    protected function defaultSearch(array $data): Model
+    {
+        return $this->fetchByMessageAndName($data['message_id'], $data['name']);
+    }
+
+    public function load(array $row): \ProVM\Emails\Model\State\Message
+    {
+        return (new \ProVM\Emails\Model\State\Message())
+            ->setId($row['id'])
+            ->setName($row['name'])
+            ->setValue(($row['value'] ?? 0) !== 0);
+    }
+
+    public function fetchByMessage(int $message_id): array
+    {
+        $query = "SELECT * FROM `{$this->getTable()}` WHERE `message_id` = ?";
+        return $this->fetchMany($query, [$message_id]);
+    }
+    public function fetchByMessageAndName(int $message_id, string $name): \ProVM\Emails\Model\State\Message
+    {
+        $query = "SELECT * FROM `{$this->getTable()}` WHERE `message_id` = ? AND `name` = ?";
+        return $this->fetchOne($query, [$message_id, $name]);
+    }
+}
\ No newline at end of file