Add Adapters and tests for Mailtrap.

src/Utopia/Messaging/Adapters/Email/Mailtrap.php

@@ -0,0 +1,73 @@
+<?php
+
+namespace Utopia\Messaging\Adapters\Email;
+
+use Utopia\Messaging\Adapters\Email as EmailAdapter;
+use Utopia\Messaging\Messages\Email;
+
+class Mailtrap extends EmailAdapter
+{
+    /**
+     * @param  string  $apiKey Your Mailtrap API key to authenticate with the API.
+     * @return void
+     */
+    public function __construct(private string $apiKey)
+    {
+    }
+
+    /**
+     * Get adapter name.
+     *
+     * @return string
+     */
+    public function getName(): string
+    {
+        return 'Mailtrap';
+    }
+
+    /**
+     * Get max messages per request.
+     *
+     * @return int
+     */
+    public function getMaxMessagesPerRequest(): int
+    {
+        return 1000;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param  Email  $message
+     * @return string
+     *
+     * @throws Exception
+     */
+    protected function process(Email $message): string
+    {
+        $bodyKey = $message->isHtml() ? 'html' : 'text';
+
+        $response= $this->request(
+            method: 'POST',
+            url: 'https://send.api.mailtrap.io/api/send',
+            headers: [
+                'Accept: application/json',
+                'Api-Token: '.$this->apiKey,
+                'Content-Type: application/json',
+            ],
+            body: \json_encode([
+                'to' => \array_map(
+                    fn ($to) => ['email' => $to],
+                    $message->getTo()
+                ),
+                "subject" =>$message->getSubject(),
+                $bodyKey => $message->getContent(),
+                'from' => [
+                    'email' => $message->getFrom(),
+                ],
+            ]),
+        );
+        return $response;
+    }
+}
+

tests/e2e/Email/MailtrapTest.php

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+<?php
+
+namespace Tests\E2E;
+
+use Utopia\Messaging\Adapters\Email\Mailtrap;
+use Utopia\Messaging\Messages\Email;
+
+class MailtrapTest extends Base
+{
+    /**
+     * @throws \Exception
+     */
+    public function testSendPlainTextEmail()
+    {
+        $this->markTestSkipped('Mailtrap credentials not set.');
+
+        $key = getenv('MAILTAP_API_KEY');
+        $sender = new Mailtrap($key);
+
+        $to = getenv('TEST_EMAIL');
+        $subject = 'Test Subject';
+        $content = 'Test Content';
+        $from = getenv('TEST_FROM_EMAIL');
+
+        $message = new Email(
+            to: [$to],
+            from: $from,
+            subject: $subject,
+            content: $content,
+        );
+
+        $response = $sender->send($message);
+
+        $this->assertArrayHasKey('messageId', json_decode($response, true));
+    }
+}