Laravel's mail transport for SendinBlue

composer require webup/laravel-sendinblue:^2

Compatibility

config/app.php

    'providers' => [
        Webup\LaravelSendinBlue\SendinBlueServiceProvider::class,
    ],

config/services.php

    'sendinblue' => [
        // api-key or partner-key
        'key_identifier' => env('SENDINBLUE_KEY_IDENTIFIER', 'api-key'),
        'key' => env('SENDINBLUE_KEY'),
    ],

.env

MAIL_DRIVER=sendinblue
SENDINBLUE_KEY=your-access-key

Using the sendinblue() method you may pass extra fields listed below. All fields are optional:

• template_id (integer)
• tags (array)
• params (array)

If you want to use the subject defined in the template, it's necessary to pass the SendinBlueTransport::USE_TEMPLATE_SUBJECT placeholder in the subject(). You may as well override the subject text here. Otherwise, without the subject() method, the subject will be derived from the class name.

Mailable requires a view - pass an empty array in the view() method.

    use SendinBlue;

    // ...

    public function build()
    {
        return $this
            ->view([])
            ->subject(SendinBlueTransport::USE_TEMPLATE_SUBJECT) // use template subject
            // ->subject('My own subject') // subject overridden
            ->sendinblue(
                [
                    'template_id' => 84,
                    'tags'        => ['offer'],
                    'params'      => [
                        'FIRSTNAME' => 'John',
                        'LINK'      => 'https://www.example.com',
                        'AMOUNT'    => '29',
                    ],
                ]
            );
    }

Params are accessbile in the SendinBlue template as:

• {{ params.FIRSTNAME }}
• {{ params.LINK }}
• {{ params.AMOUNT }}

You may as well use param substitution in the subject field, eg.:
{{ params.FIRSTNAME }}, forgot your password?!

Note: Do not use hyphens '-' in the variable names. {{ params.FIRST_NAME }} will work properly, but {{ params.FIRST-NAME }} will fail. Source: sendinblue/APIv3-php-library#151