When I try to send email to a particular domain, the mail bounces and I get
the following errors:
-Unable to deliver the message due to a communications failure
My ISP says the record is fine, and I can do a lookup from an outside web
site and it resolves fine to our IP. NSlookup from my DNS server resolves
the name fine. (I will mention that we are on the 10.200 schema behind a
PIX.) Where can I look to resolve this?