mtb_dcatadmin_album/config/mail_recipients.php

<?php
return [
    'to' => [
        'name' => env('MAIL_TO_NAME', ''),
        'address' => env('MAIL_TO_ADDRESS', ''),
    ],
    'cc' => [
        'name' => env('MAIL_CC_NAME', ''),
        'address' => env('MAIL_CC_ADDRESS', ''),
    ],
];