[Mailman-Users] Confusion between sendmail and mailman for hostnames

Chris Waltham cwaltham at bowdoin.edu
Wed Sep 19 17:47:11 CEST 2007

Hi Mark,

On Sep 19, 2007, at 11:34 AM, Mark Sapiro wrote:

> Chris Waltham wrote:
>> I have a new server called bingham.testing.bowdoin.edu, which has a
>> CNAME in DNS so that newlists.bowdoin.edu points to
>> bingham.testing.bowdoin.edu. Because bingham will do other things
>> than just Mailman, I wanted this flexibility. I compiled Mailman
>> with  --with-mailhost=newlists.bowdoin.edu and --with-
>> urlhost=newlists.bowdoin.edu so that I can make as few changes to
>> mm_cfg.py as necessary.
>> So, I'll create a list called "testing" on the machine that is
>> bingham.testing.bowdoin.edu (but Mailman believes it's
>> newlists.bowdoin.edu). I can email testing at newlists.bowdoin.edu and
>> subscribe myself to the list and post to the list successfully.
>> However, when I click "Reply" to a message posted to the testing
>> list, the email address displayed is
>> testing at bingham.testing.bowdoin.edu instead of
>> testing at newlists.bowdoin.edu.
> I believe this is the exact issue of the FAQ at
> <http://www.python.org/cgi-bin/faqw-mm.py?req=show&file=faq06.022.htp>
> The solution is to not use a CNAME for newlists.bowdoin.edu, use an A
> record with the same address as bingham.testing.bowdoin.edu.

I can't believe I missed that in the FAQ! I've gone through that FAQ  
a bunch for other issues (mostly moving lists), I feel embarrassed now.

I removed the two masquerading entries from sendmail.mc, changed the  
CNAME to an A-record and now everything is peachy.

Thanks again,


More information about the Mailman-Users mailing list