Mailserver configuration

less than 1 minute read

This page provides information on how to make your mailserver more resiliant against mail abuse.


  1. Mail-Test - tests the spammyness of your emails (SPF, DKIM, DMARC)
  2. Port 25 Authentication Checker - tests whether SPF and DKIM have been correctly setup for you domain
  3. OpenDKIM update helper - automate the generation of new DKIM keys



Leave a comment