[Mailman-Users] Extremely High Membership lists

Neil Cooler ncooler at nandomedia.com
Thu Jun 29 01:27:31 CEST 2000

This is understood.

I just needed to make sure that I am not installing a program that is going
to send 4 copies of each mail to 400,000 users.

Thanks for all of the help so far.

I haven't had anyone tell me that mailman is NOT the proper list manager for
this application yet, so I am still working towards my 11:00 AM tomorrow
deadline to have mailman working and in production with several smaller
internal lists.

As for the MTA debate, please, everyone, argue more.  I need as to get as
much info as possible to make a quick decision on what mailer to use for
this installation. Right now I am going to stick with sendmail until i
figure out how to use postfix, but I may switch to something else in due


-----Original Message-----
From: J C Lawrence <claw at cp.net>
To: Neil Cooler <ncooler at nandomedia.com>
Cc: mailman-users at python.org <mailman-users at python.org>; Chuq Von Rospach
<chuqui at plaidworks.com>
Date: Wednesday, June 28, 2000 7:15 PM
Subject: Re: [Mailman-Users] Extremely High Membership lists

>On Wed, 28 Jun 2000 18:39:23 -0400
>Neil Cooler <ncooler at nandomedia.com> wrote:
>> Is this an MTA problem or a mailman problem?
>I don't have the messages left here to check (deleted and purged),
>but determining is fairly easy: just check the Received lines.
>Points to check:
>  1) Received lines coming into python.org and Mailman
>  2) Received lines coming out of Mailman.
>If the headers in #1 are all identical then the problem is not with
>the sender.  If they are different then the problem is upstream of
>python.org and Mailman.
>If the headers in #2 are identical then the problem is with the MTA
>at python.org or some other later system (see where the divergence
>is).  If the headers in #2 are different then Mailman is the source
>of the dupes.
>Remember: Python.org is running a beta version of Mailman precisely
>so we can shake out these sorts of bugs (if it is Mailman's fault).
>J C Lawrence                              Internet: claw at kanga.nu
>----------(*)                            Internet: coder at kanga.nu
>...Honorary Member of Clan McFud -- Teamer's Avenging Monolith...

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