Add it in the domain module:
User1.mydomain.com, user2.mydomain.com, etc. On each of their accounts.
Not sure why it is coded that way, but it works. Then go into dns manager and create defaults.
User1.mydomain.com, user2.mydomain.com, etc. On each of their accounts.
Not sure why it is coded that way, but it works. Then go into dns manager and create defaults.