feat(mail) : MailProviderInterface + MailProviderException

src/Mail/Exception/MailProviderException.php

@@ -0,0 +1,20 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Mail\Exception;
+
+use RuntimeException;
+
+final class MailProviderException extends RuntimeException
+{
+    public static function connectionFailed(string $reason): self
+    {
+        return new self(sprintf('Mail provider connection failed: %s', $reason));
+    }
+
+    public static function operationFailed(string $operation, string $reason): self
+    {
+        return new self(sprintf('Mail provider operation "%s" failed: %s', $operation, $reason));
+    }
+}