Craft CMS Postmark Mailer Component

craft-cms-postmark-mailer-component.php

<?php
return [
    'components' => [
        'mailer' => function() {
            // Get the stored email settings
            $settings = craft\helpers\App::mailSettings();

            // Override the transport adapter class
            $settings->transportType = craft\postmark\Adapter::class;

            // Override the transport adapter settings
            $settings->transportSettings = [
                'token' => 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx',
                // Using env vars
                // 'token' => getenv('POSTMARK_SERVER_TOKEN'),
            ];

            // Create a Mailer component config with these settings
            $config = craft\helpers\App::mailerConfig($settings);

            // Instantiate and return it
            return Craft::createObject($config);
        },
    ],
];