[Mailman-Users] list reply domain mangled

[Ryan Caron]

I have a aaa at yyy.zzz.ucla.edu, but when an email is sent out, it appears 
to come from aaa at zzz.ucla.edu. Only an explicit reply-list works, and 
then not all the time.

I should note that the server is not virtual, and doesn't have any other 
names beyond yyy.zzz.ucla.edu. DEFAULT_URL_HOST & DEFAULT_EMAIL_HOST are 
explicitly defined that way anyway. The individual lists have the 
host_name properly defined as well.

Even reply-to header munging (first_strip_reply_to, reply_goes_to_list,
& reply_to_address) are ineffective at preserving the yyy portion.

Most list members have addressed zzz.ucla.edu, but those who are 
external (like gmail) always get proper yyy.zzz reply-to domains.

At this point I'm guessing MTA somewhere is changing all this, but at 
this point I'm definitely out of my element. The MTA on the box is 
sendmail, but as for the rest of the network...

Thanks,
Ryan