Override Yii2 Swiftmailer Recipient -

i need override recipient email every instance of swiftmailer's send() function throughout yii2 application. purpose of load testing.

is there easy way this? or @ least way without editing swiftmailer's vendor files?

if test why not set usefiletransport emails saved in folder of choice instead of being sent. configure this:

'components' => [     // ...     'mailer' => [         'class' => 'yii\swiftmailer\mailer',         'usefiletransport' => true,     ], ], 

this save emails in @runtime/mail folder, if want different 1 set:

'mailer' => [     // ...     'filetransportpath' => '@runtime/mail', // path or alias here ], 

if want still send emails , override recipients can example extend yii\swiftmailer\mailer class.

class mymailer extends \yii\swiftmailer\mailer {     public $testmode = false;     public $testemail = 'test@test.com';      public function beforesend($message)     {         if (parent::beforesend($message)) {             if ($this->testmode) {                 $message->setto($this->testemail);             }             return true;         }         return false;     } } 

configure it:

'components' => [     // ...     'mailer' => [         'class' => 'namespace\of\your\class\mymailer',         // rest same in normal config     ], ], 

and can use in same way use mailer component time. when it's time switch test mode modify configuration:

'mailer' => [     'class' => 'namespace\of\your\class\mymailer',     'testmode' => true,     'testemail' => 'test222@test.com', // optional if want send address different default test@test.com     // rest same in normal config ], 

with this, every email overridden recipient address.