How send transaction emails in Laravel using Brevo (ex Sendinblue)

First, lets install Mailer driver:

"symfony/brevo-mailer": "^7.0"

Now lets configure our Mailer. First put this code inside boot() method in your AppServiceProvider.php:

public function boot(): void
{
    //...

    $this->app['mail.manager']->extend('brevo', function ($config) {
        $configuration = $this->app->make('config');

        return (new BrevoTransportFactory())->create(
            Dsn::fromString($configuration->get('services.brevo.dsn'))
        );
    });
}

Here you can see services.brevo.dsn config. I created file config/services and there the following code:

return [
    'brevo' => [
        'dsn' => env('MAILER_DSN'),
    ],
];

Now lets go to config/mail.php and setup our mailer:

'mailers' => [
    // ...
    'brevo' => [
        'transport' => 'brevo',
    ],
]

Then we should create our Email:

class WelcomeMail extends Mailable
{
    use Queueable, SerializesModels;

    public function __construct(
        public readonly string $username
    ) {
    }

    public function build(): self
    {
        $this->withSymfonyMessage(function (Email $message) {
            $message->getHeaders()
                ->addHeader('templateId', 1)
                ->addParameterizedHeader('params', 'params', [
                    'customerName' => $this->username,
                ]);
        });

        return $this;
    }
}

Here we add headers with templateId and custom data. Brevo uses custom data to fill your variables inside your templates.

Feel free to ask any questions in comments 👇

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