I have 3.0 with Multisites set up - based on the subdomain approach.
All my sites work great (site1.xxx.com, site2.xxx.com, etc). (xxx is dummy name)
However, I get "caught" when I try to access my email server using the standard "mail.xxx.com". It simply goes to registration "http://xxx.com/wp-signup.php?new=mail".
I set up a separate mail server (google.com) and changed the MX headers to point there...with no luck.
I tried creating a page called "mail" and using the "Page links to" plugin redirect "xxx.com/mail" to the third party server URL (google). I get an error 404 instead.
(However, If I click on the actual page (not just type in URL)...then it does work. My solution needs to be a simple URL for mail)
My Question (finally)...How can I get mail.xxx.com to work?
"newbie with dangerously little info, and willing to use it!"