How to Setup DomainKeys (DKIM) with Postfix on CentOS/RHEL 7/6
- Step 1 – Install DKIM-milter. First make sure you have enabled EPEL repository in your system. ...
- Step 2 – Generate Key Pair. ...
- Step 3 – Configure OpenDKIM. ...
- Step 4 – Configure Postfix. ...
- Step 5 – Configure DNS Entry. ...
- Step 6 – Verify DKIM.