Communication between ucs primary and mail server on ucs secondary

Hello,

In our setup we have the ucs mail server app installed on a separate ucs secondary server in our domain. We would like to use the self-service features on the ucs primary server.

Just to get it right:

  • Do I have to set the mail server as relay host on the primary server?
  • If so does it need authentication?

Greetings
Gerrit