I have a domain controller (techlabtest.com) (dc acts as dnd server) on win server 2003. A member server on win 2003 where i have installed my exchange server 2003. Internal mail works..Sending external mail to external sources works too..But i'm not able to receive mail from external sources.
I have use popcon to download my mail as i dont have a fixed ip address. I got an error message on popcon. (please see attach screen shot).
I have noticed from a client computer when i ping mail.techlabtest.com, it can...But from my dc and my mailserver it can't (see attach screen shot)
Don't know if its a dns problem!!