[Mailman-Users] new users get welcome e-mails but posts aren't going out

[Nathan K. Stazewski]

I apologize if this is in the archives.  I searched for a while and 
couldn't find this issue.  I just did a fresh install of Mailman 2.1.8 
on OS X 10.4 (Tiger).  I have it to the point where I can create lists 
through the web interface and sign people up for the lists.   When I 
subscribe an address to a list (or create a new list) an e-mail is sent 
and received by the appropriate parties.  If I post to the listserv, 
though, no e-mail ever comes through.  I thought I'd improperly setup 
postfix until I noticed the other e-mails were being properly sent.  The 
mail server is apparently at least partially working, but I can't get a 
post through at all.  I've looked through the smtp and smtp-failure 
logs, and don't notice any obvious problems.  Anyone have any educated 
guesses as to some places that I should check (I'm not sure if this is a 
postfix problem or a mailman problem currently).  I can definitely 
provide my current configuration settings if anyone has any ideas, but 
I'm not even sure what would be helpful right now.

-- 
Nate