I'd like to evaluate Zimbra because it gives me a very good impression. But I have a question about the installation. I do not want Zimbra to be a mail server or relay host. So I did not select zimbra-mta and zimbra-snmp, but the install(.sh) script still wants to see a MX record for the given DNS name. Why? I already have a mail server and I just want Zimbra acting as a interface for the mail server to the user.
What am I doing wrong? Or does it really not work without being a mail server or relay host?
Thank you in advance for your help,