[Mailman-Users] Another error - Services unavailable

[Heather J. Lubinsky]

Actually my list users are getting their email and everything "seems" to be
working but all of the sudden (I have had these lists running on the server
for about a year) I started getting these messages from the server.
postmaster at pcosupport.org is receiving them and they only seem to be about
the -admin accounts.  I have never had a problem with our servers before and
it started yesterday at 1:45pm.  I thought maybe the server needed a reboot
and did a reboot and then deleted the lock files and everything was running
but the errors still came in.  I cannot figure out what the message is that
is supposed to be going to the -admin accounts as we are getting messages
that are sent to just the -admin accounts and the subscribe and unsubscribe
notices along with the pending emails to be approved - so we are not sure
what is causing this - I tried looking in the error files and I just can't
see anything.

Heather
----- Original Message -----
From: "Dave Stern - Former Rocket Scientist" <dave at umiacs.umd.edu>
To: "Mailman users Mailing list" <mailman-users at python.org>
Cc: "Heather J. Lubinsky" <heather at pcgal.com>
Sent: Friday, February 28, 2003 8:34 AM
Subject: Re: [Mailman-Users] Another error - Services unavailable


> On Fri, 2003-02-28 at 03:36, Heather J. Lubinsky wrote:
> > Any idea why this would be happening?
> > I wonder if something is wrong with my server
> > Mailman 2.0.8 and Linux & apache
> > Heather
> >
> > Return-Path: <MAILER-DAEMON at pcosupport.org>
> > Received: from localhost (localhost)
> >  by pcosupport.org (8.11.6/8.11.6) id h1S8PlL06733;
> >  Fri, 28 Feb 2003 00:25:47 -0800
> > Date: Fri, 28 Feb 2003 00:25:47 -0800
> > From: Mail Delivery Subsystem <MAILER-DAEMON at pcosupport.org>
> > Message-Id: <200302280825.h1S8PlL06733 at pcosupport.org>
> > To: postmaster at pcosupport.org
> > MIME-Version: 1.0
> > Content-Type: multipart/report; report-type=delivery-status;
> >  boundary="h1S8PlL06733.1046420747/pcosupport.org"
> > Subject: Postmaster notify: see transcript for details
> > Auto-Submitted: auto-generated (postmaster-notification)
> > Status:
> >
> > This is a MIME-encapsulated message
> >
> > --h1S8PlL06733.1046420747/pcosupport.org
> >
> > The original message was received at Fri, 28 Feb 2003 00:25:47 -0800
> > from localhost
> > with id h1S8PlK06733
> >
> >    ----- The following addresses had permanent fatal errors -----
> > <pcos-admin at pcolist.org>
> >     (reason: 550 5.0.0 Access denied)
> >
> >    ----- Transcript of session follows -----
> > ... while talking to mail.pcolist.org.:
> > >>> MAIL From:<>
> > <<< 550 5.0.0 Access denied
> > 554 5.0.0 Service unavailable
> >

Another possibility is that sendmail was built with tcpwrap support and
thus sendmail is being restricted by tcpwrappers (/etc/hosts.{allow,deny}

Can the sender mconnect (telnet yourhost 25)?

 =-=-=-=-=-=-=-=-=-=-=-=-  generated by
/dev/dave -=-=-=-=-=-=-=-=-=-=-=-=-=-=
 David Stern                                            University of
Maryland
                Institute for Advanced Computer Studies