On Fri, 2008-04-18 at 13:01 -0400, Charles Marcus wrote:
> On 4/18/2008, Jonathan Dill ([EMAIL PROTECTED]) wrote:
> > If you are using a separate e-mail relay, could also be firewall  
> > issue,
> 
> Is there by any chance a CISCO router in the mix anywhere?

There is a router between the 2 mail servers as they are on separate
networks but I believe the issue is with my sendmail configuration.  I
have implemented the rate control feature of sendmail and I started to
see messages like:

reject=421 4.3.2 Connection rate limit exceeded.

from the mail server. This would prevent Mailman from opening too many
connections to the local sendmail daemon causing the messages to end up
in retry, IMHO.  On occasion, I tried to restart sendmail and when the
script attempted to stop the local sendmail daemon it had shown it died
probably because of all of the connections it was receiving.  Anyhow,
that is my speculation.

I will be adding rules to sendmail's access list to unlimit the number
of sendmail connections from the machine.  Also, I am going to try to
move the list server again.

Darren
ODU 


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