I am using the Microsoft Windows Server 2003 POP3 Service for my emails. BUT here is my problem:
I have setup the accounts for mydomain.com. On my domain control panel (1and1) I just use A records and don't run my own DNS server, in the MX records box I am unsure what to place since if I try to place my IP in the box it says: The mail exchanger is not sufficient or hasn't been approved. If I place my domain in the MX record I never get the emails.