With Lettermint, you can now send marketing campaigns and newsletters alongside transactional emails. In this update (changelog), we’ll walk you through Lettermint Broadcast and explain why we keep it separate from our transactional emails.
Transactional vs. Broadcast
At Lettermint, we categorize emails into two types: transactional and broadcast. As always, we ensure both types are delivered quickly and securely. To maintain this standard, we use a segregated infrastructure for sending these emails.
- Transactional emails won't be affected by large email campaigns sent via Lettermint Broadcast, such as newsletters or marketing campaigns targeting thousands of recipients.
- Transactional emails, like password recovery, order confirmations, or notifications, will continue to be delivered promptly.
- Broadcast emails are automatically recognized by mail providers like Gmail and Outlook as marketing emails, making it easier for recipients to manage their inboxes.
How to Send Emails with Lettermint Broadcast
Sending broadcast emails is almost as straightforward as sending transactional emails. If you’re using PHP, include the route in your request, like this:
$lettermint = new Lettermint\Lettermint('your-api-key');
$lettermint->email
->from('John Doe <john@yourdomain.com>')
->to('recipient@example.com')
->subject('Your acount is ready!')
->html('<h1>Welcome!</h1><p>Thanks for signing up.</p>')
->text('Welcome! Thanks for signing up.')
->route('broadcast')
->send();
Broadcast is also available via Node.js, REST, Laravel, Magento, SMTP, and other integrations. For more details, check out our documentation.
Lettermint Broadcast Route
When you create a project in your Lettermint dashboard, an extra route for broadcast emails is automatically created. This route is set to "broadcast" by default. If you want to use a different name or see which routes are available, go to your project settings and click on the Routes tab.

Want to learn more about Lettermint Broadcast? Check out the Broadcast emails page.