You can integrate Postal with your application either via API or SMTP connection.
If you integrate Postal into your own application, we recommend that you primarily use the Postal API to send emails. This is because the API allows you to get more information about your mailings:
- You will receive a confirmation that the message has been queued to be sent.
- You get a unique message ID. Using webhooks, you can get information to your application if the message has arrived or bounced.
- You can integrate open and click tracking into your application.
If you haven’t built your own application, if you don’t particularly want to integrate with Postal, or if the information that the API together with webhooks gives you is not something you want, we recommend SMTP.
Most applications, CMS and the like have built-in support for sending emails using SMTP.