Send Mailman-Developers mailing list submissions to
[EMAIL PROTECTED]
To subscribe or unsubscribe via the World Wide Web, visit
http://mail.python.org/mailman/listinfo/mailman-developers
or, via email, send a message with subject or body 'help' to
[EMAIL PROTECTED]
You can reach the person managing the list at
[EMAIL PROTECTED]
When replying, please edit your Subject line so it is more specific
than "Re: Contents of Mailman-Developers digest..."
Today's Topics:
1. Re: Uncaught bounce notification .. (Martin Maechler)
2. Re: Uncaught bounce notification .. (J C Lawrence)
3. Re: Uncaught bounce notification .. (Nigel Metheringham)
----------------------------------------------------------------------
Message: 1
Date: Fri, 14 Nov 2003 09:05:48 +0100
From: Martin Maechler <[EMAIL PROTECTED]>
Subject: Re: [Mailman-Developers] Uncaught bounce notification ..
To: J C Lawrence <[EMAIL PROTECTED]>
Cc: mailman-developers <[EMAIL PROTECTED]>, Martin
Maechler <[EMAIL PROTECTED]>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=us-ascii
>>>>> "J" == J C Lawrence <[EMAIL PROTECTED]>
>>>>> on Tue, 11 Nov 2003 09:05:45 -0500 writes:
J> On Tue, 11 Nov 2003 10:52:07 +0100
J> Martin Maechler <[EMAIL PROTECTED]> wrote:
>> My problem is that I get about 50 "Uncaught bounce notification"s per
>> day, only few of which are spam/virus related.
J> Turn on VERP for a few days.
J> --
J> J C Lawrence
J> ---------(*) Satan, oscillate my metallic sonatas.
J> [EMAIL PROTECTED] He lived as a devil, eh?
J> http://www.kanga.nu/~claw/ Evil is a name of a foeman, as I live.
Thank you, "J", for the suggestion,
but that seems not an option for two reasons
1) we (currenly must) use sendmail and that doesn't seem to
support VERPing -- or at least we haven't found docu on that
2) VERP will probably cost quite a bit of CPU/memory/disk-IO
resources on the mail servert. Currently that server almost
constantly runs on load 2.5 -- 3
(because of anti-virus / anti-spam / mailman ..)
------
OTOH, most of these "uncaught bounce notification" can quite
easily resolved by a human, i.e., the subscriber's e-mail can
very often be found in the bounce.
E.g., if they resend the full headers, I can find the proper
subscriber's address in a "Received:" header such as
Received: from hypatia.math.ethz.ch ([EMAIL PROTECTED] [129.132.58.23])
by cryforhelp.mr.itd.umich.edu (umich) with ESMTP id hAB7NrHc014893
for <[EMAIL PROTECTED]>; Tue, 11 Nov 2003 02:23:53 -0500
(hypatia is our own mail server)
I.e., I think mailman's analysis of the bounce message leaves
room for improvement. Can you tell me where in the python code
this happens (so we might consider improving it here)?
Best regards,
and thank you all for mailman!
Martin Maechler <[EMAIL PROTECTED]> http://stat.ethz.ch/~maechler/
Seminar fuer Statistik, ETH-Zentrum LEO C16 Leonhardstr. 27
ETH (Federal Inst. Technology) 8092 Zurich SWITZERLAND
phone: x-41-1-632-3408 fax: ...-1228 <><
------------------------------
Message: 2
Date: Fri, 14 Nov 2003 08:40:02 -0500
From: J C Lawrence <[EMAIL PROTECTED]>
Subject: Re: [Mailman-Developers] Uncaught bounce notification ..
To: Martin Maechler <[EMAIL PROTECTED]>
Cc: mailman-developers <[EMAIL PROTECTED]>
Message-ID: <[EMAIL PROTECTED]>
On Fri, 14 Nov 2003 09:05:48 +0100
Martin Maechler <[EMAIL PROTECTED]> wrote:
> "J" == J C Lawrence <[EMAIL PROTECTED]> on Tue, 11 Nov 2003 09:05:45
> -0500 writes:
>> On Tue, 11 Nov 2003 10:52:07 +0100 Martin Maechler
>> <[EMAIL PROTECTED]> wrote:
>>> My problem is that I get about 50 "Uncaught bounce notification"s
>>> per day, only few of which are spam/virus related.
>> Turn on VERP for a few days.
> 1) we (currenly must) use sendmail and that doesn't seem to support
> VERPing -- or at least we haven't found docu on that
Mailman's VERP supports don't require VERP support in the MTA, merely
support for plus addressing.
> 2) VERP will probably cost quite a bit of CPU/memory/disk-IO resources
> on the mail servert. Currently that server almost constantly runs on
> load 2.5 -- 3 (because of anti-virus / anti-spam / mailman ..)
The added overhead is increased delivery expense in the form of more
disk IO, both for the initial delivery from Mailman, and the final
delivery to the target MX. The other overheads are fairly minimal given
minor MTA tuning.
--
J C Lawrence
---------(*) Satan, oscillate my metallic sonatas.
[EMAIL PROTECTED] He lived as a devil, eh?
http://www.kanga.nu/~claw/ Evil is a name of a foeman, as I live.
------------------------------
Message: 3
Date: Fri, 14 Nov 2003 13:48:05 +0000
From: Nigel Metheringham <[EMAIL PROTECTED]>
Subject: Re: [Mailman-Developers] Uncaught bounce notification ..
To: mailman-developers <[EMAIL PROTECTED]>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain
On Fri, 2003-11-14 at 13:40, J C Lawrence wrote:
> On Fri, 14 Nov 2003 09:05:48 +0100
> Martin Maechler <[EMAIL PROTECTED]> wrote:
> > 2) VERP will probably cost quite a bit of CPU/memory/disk-IO resources
> > on the mail servert. Currently that server almost constantly runs on
> > load 2.5 -- 3 (because of anti-virus / anti-spam / mailman ..)
>
> The added overhead is increased delivery expense in the form of more
> disk IO, both for the initial delivery from Mailman, and the final
> delivery to the target MX. The other overheads are fairly minimal given
> minor MTA tuning.
Virus/Spam scanning should not be done for mail injection from mailman -
its already been scanned when it came through the MTA on the way into
mailman, so a second scan is completely superfluous and downright silly
when you have expanded the original incoming message into a number of
outgoing ones (even without VERP).
Nigel.
--
[ Nigel Metheringham [EMAIL PROTECTED] ]
[ - Comments in this message are my own and not ITO opinion/policy - ]
------------------------------
_______________________________________________
Mailman-Developers mailing list
[EMAIL PROTECTED]
http://mail.python.org/mailman/listinfo/mailman-developers
End of Mailman-Developers Digest, Vol 175, Issue 14
***************************************************
