Test your email deliverability score with Mail-Tester

Mail-Tester gives you a real, comprehensive deliverability score by analyzing a test email you send it, checking authentication, content, and reputation factors all at once, a genuine end-to-end test rather than checking individual pieces separately.

Individual checks like SPF or DKIM passing does not guarantee good overall deliverability, this test gives a genuine composite picture closer to what an actual receiving mail server evaluates.

How to do it

1. 1
   Send a real test email to the address Mail-Tester provides

   Use your actual sending setup, not a special test configuration.
2. 2
   Review the full score breakdown

   Covers authentication, content analysis, blacklist status, and more in one report.
3. 3
   Fix whatever is flagged

   Each issue in the report comes with a specific, actionable explanation.
4. 4
   Re-test after making changes

   Confirm the score improves and no new issues appear.