The official Swiftmailer transport for MailPace

1.0.4 2022-05-09 12:15 UTC

This package is auto-updated.

Last update: 2023-11-09 15:19:16 UTC


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MailPace lets you send transactional emails from your app over an easy to use API.

This MailPace PHP Package is a transport for SwiftMailer to send emails via MailPace to make sending emails from PHP apps super simple. You can use this with popular frameworks such as Laravel, Codeigniter and Symfony to send transactional emails, or with a standalone PHP app.

This package uses the MailPace HTTPS /send endpoint to send the email - which is generally faster and more reliable than SMTP, although you can of course use SMTP to send out emails from your PHP app without installing this package if you prefer.


You will need an MailPace account with a verified domain and organization with an active plan.


Install the package via composer:

composer require mailpace/mailpace-swiftmailer

Account Setup

Set up an account at MailPace and complete the Onboarding steps

Configure the Package

First you will need to retrieve your API token for your sending domain from MailPace. You can find it under Organization -> Domain -> API Tokens

You'll need to store this API token somewhere in your app/runtime, we recommend Environment Variables for this, and the examples below assume that you have an environment variable called OHMYSMTP_API_TOKEN that contains your API token

Sending without a framework


$transport = new MailpaceSwiftmailerTransport(env('OHMYSMTP_API_TOKEN'));
$mailer = new Swift_Mailer($transport);

$message = (new Swift_Message('A transactional email from MailPace!'))
  ->setFrom(['' => 'Your Name'])
  ->setBody('<h1>HTML content</h1>', 'text/html')
  ->addPart('Text Body','text/plain');

// Attachments
$data = 'Raw Attachment Data';
$attachment = new Swift_Attachment($data, 'attachment.txt', 'text/plain');

// Email Tags
$headers = $message->getHeaders();
$headers->addTextHeader('MailPace-Tag', 'tag-1');
$headers->addTextHeader('MailPace-Tag', 'tag with spaces');


Sending with Laravel

To send with Laravel you need to make a few small tweaks, but it really only takes a moment.

  1. Add mailpace to the config/mail.php configuration file:
'mailpace' => [
    'transport' => 'mailpace',
  1. Add the following to your config/services.php configuration file:
'mailpace' => [
  'apiToken' => env('OHMYSMTP_API_TOKEN'),
  1. In config/app.php, add the following to the providers array:

and remove / comment out the line:

  1. In your .env file (or wherever you store environment variables), change the MAIL_MAILER variable as follows:


  1. Create a new file called MailpaceServiceProvider.php in App/Providers with the following contents:

namespace App\Providers;

use Illuminate\Mail\MailManager;
use Illuminate\Mail\MailServiceProvider;
use Mailpace\MailpaceSwiftmailer\MailpaceSwiftmailerTransport;

class MailpaceServiceProvider extends MailServiceProvider
    protected function registerIlluminateMailer()
        $this->app->singleton('mail.manager', function ($app) {
            $manager = new MailManager($app);
            return $manager;

    protected function registerOhMySmtpTransport(MailManager $manager) {
        $manager->extend('mailpace', function ($config) {
            if (! isset($config['apiToken'])) {
                $config = $this->app['config']->get('services.mailpace', []);
            return new MailpaceSwiftmailerTransport($config['apiToken']);

After completing the above steps, all email will be sent via MailPace.


For support please check the MailPace Documentation or contact us at


Please ensure to add a test for any changes. To run the tests:

composer test

Pull requests always welcome


The gem is available as open source under the terms of the MIT License.