[Mailman-Users] SMTP error "All recipients refused"

[Dan Mick]

> I've been a happy Mailman user for many months, with absolutely no
> problems.  I just rebuilt my server from scratch using RHL 7.0 (previous
> installation was RHL 6.1).  Everything else is back on the air, but I 
> can't seem to get Mailman going again.  I rebuilt and reinstalled from the 
> current distribution, created a test list, and subscribed myself to it.
> 
> Problem is, I can't get Mailman to send anything!
> 
> ~mailman/logs/smtp is growing rapidly, with lines like -
> 
> Jan 08 02:51:03 2001 (24659) All recipients refused: host not found
> Jan 08 02:51:03 2001 (24659) smtp for 1 recips, completed in 0.067 seconds
> 
> 
> When it says "host not found", how do I tell what host it was trying to
> reach?  Seems like that would help narrow it down to whether Mailman
> is sending to the wrong place or sendmail isn't listening...

How about the sendmail logs?