[Modus] Question for the group.

[WMOL Admin]

Greets,  We seem to be having trouble delivering to a few different domains lately, one being webtv. I can't seem to figure out why but on another domain we have issues with I noticed today if I telnet to it on port 25 from our mail server it takes forever to greet us but if I telnet to it from many other boxes on our network it replies right away. These boxes are all on the same class C, a variety of OS', and the other end does eventually greet the mail server if I telnet in but it takes at least 2 minutes so i assume our mail server is timing out when trying to deliver.   On the webtv delivery problem their primary seems to totally reject port 25 sessions from any of our hosts and their 2ndary asnwers right quick.   Any thoughts or ideas?   TIA,  Scot