Honestly, the problem may be name resolution. It's a little known solution, but you can hardcode mappings of IP addresses to names inside of the windows hosts file, just as in Linux.
On windows 2000 I know it's in <RootDrive>:\winnt\system32\drivers\hosts
It's a simple text file. Good luck with it. Mail debugging can be sinister.
My etc/host is showing this:
66.113.16.216 ALOweb.org
66.113.16.215 AFacademy.org
127.0.0.1 localhost
so would my next step be
128.236.2.1 OOA
or
128.236.2.1 OOA.usafa.af.mil
since it is a virtual SMTP server these two confuse me
the SMTP logs show it as OOA but we sit on the usafa.af.mil domain
Thanks for your help this is why I love Linux the forbidden OS here go figure.