[Mailman-Users] Problems with undeliverable mail

Richard Idalski ridalski at nandomedia.com
Mon Dec 31 21:30:09 CET 2001

As far as ease of configuration goes, postfix was a snap. It's basically a
drop in replacement for sendmail, simpley backup you sendmail binaries, ie;
/usr/bin/mailq /usr/bin/newaliases, and /usr/sbin/sendmail. If you have any
problems with postfix reverting back to sendmail is as easy as repacing the
new binaries with the old. That came in handy as I was working out bugs on a
live system. This was on a FreeBSD 4.3 system running mailman 2.08. I've
never run Exim so I know not of the ease of it's transition.

   -Richard Idalski

-----Original Message-----
From: Michelle Brownsworth [mailto:michelle at primelogic.com]
Sent: Monday, December 31, 2001 3:22 PM
To: mailman-users at python.org
Cc: Richard Idalski; Graham Dunn
Subject: RE: [Mailman-Users] Problems with undeliverable mail

>This works, and works well, but If I'm correct also creates an open-relay,
>for security reasons this is usually unacceptable. This was the primary
>reason I switched to postfix, same functionality minus the security gap.
>     -Richard Idalski

I appreciate Graham's suggestion, but after having a good look-see at
Postfix last night, I'm leaning toward giving it a shot.  It
certainly comes well-recommended.  However, it might be wise to
investigate Exim as well.  Any thoughts as to relative strengths and
weaknesses, features, ease of configuration, security, etc. between
the two?


>-----Original Message-----
>From: mailman-users-admin at python.org
>[mailto:mailman-users-admin at python.org]On Behalf Of Graham Dunn
>Sent: Monday, December 31, 2001 1:41 PM
>To: Michelle Brownsworth
>Cc: mailman-users at python.org
>Subject: Re: [Mailman-Users] Problems with undeliverable mail
>On Sun, Dec 30, 2001 at 11:48:21PM -0800, Michelle Brownsworth wrote:
>>  To: mailman-users at python.org
>>  From: Michelle Brownsworth <michelle at primelogic.com>
>>  Subject: Re: [Mailman-Users] Problems with undeliverable mail
>>  Cc: J C Lawrence <claw at kanga.nu>
>>  Date: Sun, 30 Dec 2001 23:48:21 -0800
>>  Okay, okay...  I know when to throw in the towel.  :^)  I'll
>>  investigate Postfix, with the hope that it's better than Qmail.
>>  After running it on a server for a couple of years, I don't care for
>>  Qmail at all.
>In your .mc file,
>define(`confDELIVERY_MODE', `deferred')
>This will stop sendmail from doing DNS queries upon accepting the mail.
>It's intended for situations where you want to prevent DNS lookups (dialup,
>I hope that does what you want.
>Mailman-Users maillist  -  Mailman-Users at python.org
>Mailman-Users maillist  -  Mailman-Users at python.org

More information about the Mailman-Users mailing list