In case you are using yiisoft/yii2-swiftmailer as mailing solution in your Yii application,
you certainly will use illuminate/mail in Laravel one. In order to use single configuration
for the mailer transport you can use \Yii2tech\Illuminate\Yii\Mail\SwiftMailer
component. It will pickup \Swift_Mailer
instance with its transport for Yii mailer from the Laravel one. Application configuration example:
<?php
return [
'components' => [
'mailer' => Yii2tech\Illuminate\Yii\Mail\SwiftMailer::class,
// ...
],
// ...
];