e-mail on an IRIS

[Tom Corsetti]

Hi
I'm writing to ask about how to set up mail on an IRIS workstation
which runs system V.  Most of my experience with setting up mail has
been on a sun 3 running 4.2 bsd.  The iris that I am trying to get set
has the following symptoms: Users can send mail out to the rest of the
world, but when you reply in verbose mode, the Iris refuses the connection.
I would appreciate any hints that some of you nice people may have for me.
I even had our Sun sendmail.cf installed on the IRIS (with appropriate
changes), but it didn't help.  Thanks in advance!
                                                  - Tom Corsetti