Postmark ✔ [Validated]

Postmark operates on a strict "no-bulk-mail" policy. They actively ban spammers and cold emailers. Because their sending IPs aren't polluted by cheap affiliate offers, Internet Service Providers (ISPs) trust them.

If your app relies on email to function, don't leave it to chance. Switch to a dedicated transactional service that values your sender reputation as much as you do. postmark

Tutorial: how to dynamically add content to a Postmark Template Postmark operates on a strict "no-bulk-mail" policy