We plan to change our internet domainname. This can be done in C1 under Tools Systemoperations -> Internet-Addressing.
What will I have when I add a second domain here.
We want to have both domainnames with our users.
For the moment we only have userA@domain1
When I add a second domain (domain2) then I have userA@domain1 and userA@domain2?
It would be nice for some time to both.
(We don't have any servers for tests)

Thanks in advance for your answers.

Best regards

Dirk Emmermacher