In this article, we will discuss you how can configure multiple SMTP in your Laravel application to send emails.

1. SMTP Configuration
2. Update .env File
3. Usage

Open config/mail.php and update your SMTP configuration:

'mailers' => [
    'smtp' => [
        'transport' => 'smtp',
        'host' => env('MAIL_HOST', 'smtp.mailgun.org'),
        'port' => env('MAIL_PORT', 587),
        'encryption' => env('MAIL_ENCRYPTION', 'tls'),
        'username' => env('MAIL_USERNAME'),
        'password' => env('MAIL_PASSWORD'),
        'timeout' => null,
        // custom
        'allow_self_signed' => true,
        'verify_peer' => false,
        'verify_peer_name' => false,
    ],
    'smtp2' => [
        'transport' => 'smtp',
        'host' => env('MAIL_HOST_SMTP2', 'smtp.mailgun.org'),
        'port' => env('MAIL_PORT_SMTP2', 587),
        'encryption' => env('MAIL_ENCRYPTION_SMTP2', 'tls'),
        'username' => env('MAIL_USERNAME_SMTP2'),
        'password' => env('MAIL_PASSWORD_SMTP2'),
        'timeout' => null,
        // custom
        'allow_self_signed' => true,
        'verify_peer' => false,
        'verify_peer_name' => false,
    ],
    // rest config
],

Now, set your SMTP credentials in the .env file.

# common
MAIL_MAILER=smtp
[email protected]
MAIL_FROM_NAME="${APP_NAME}"

# smtp 1 (default)
MAIL_HOST=smtp.mailtrap.io
MAIL_PORT=2525
MAIL_ENCRYPTION=null
MAIL_USERNAME=
MAIL_PASSWORD=

# smtp 2
MAIL_HOST_SMTP2=smtp.mailtrap.io
MAIL_PORT_SMTP2=2525
MAIL_ENCRYPTION_SMTP2=tls
MAIL_USERNAME_SMTP2=
MAIL_PASSWORD_SMTP2=

Finally, our app is ready to use two mail servers. Let's have a look at the usage:

// send using first mail server (default)
Mail::to('[email protected]')->send(new SendTestMail());
// or
Mail::mailer('smtp')->to('[email protected]')->send(new SendTestMail());

// send using second mail server
Mail::mailer('smtp2')->to('[email protected]')->send(new SendTestMail());

That's all. Thanks for reading. 👍