I've a question about default domain configuration in Zimbra.
We have to setup a Single Server installation for about 50 users, which will handle the mail for a primary domain (say company.com) and some alias domain. We are testing ZCS 5.0.16 OSE on Ubuntu 8.04 64 bit.
During the installation of Zimbra, the installer will suggest a default domain like "server.company.com", later from the admin console we can define an additional domain like "company.com" to manage the mail for the primary domain.
The question is: is it mandatory to define the server.company.com domain? or we can safely define *only* the domain "company.com"?
Which are the advantages of having also the server.company.com domain?

Thank you.