The preferred way to install this extension is through composer.
Either run
composer require --prefer-dist codexten/yii-mailqueue:"^2.0.0"
or add
"codexten/yii-mailqueue": "^2.0.0"to the require section of your composer.json.
return [
// default mailer
'mailer' => 'gmail',
//gmail
'gmail.username' => '',
'gmail.password' => '',
];./vendor/bin/hidev mailqueue