[Mailman-Users] RE: Diagnosing duplicates [Was:Now MTA tweaking!]

[Juergen Geinitz]

I once had this effect when my list was getting large. I found 
QRUNNER_LOCK_LIFETIME expiring and therefore suddenly having
a second qrunner also processing the qfiles. My qrunner lock is now
about 30 hrs. and I did not have that problem since.

Regards
 Juergen

On Mon, 2002-09-23 at 15:40, Mike Kercher wrote:
> Take a look at your maillog and grep the duplicate email address...see if your end actually sent the message to user at dom.ain more
> than once.
> 
> 
> -----Original Message-----
> From: mailman-users-admin at python.org
> [mailto:mailman-users-admin at python.org]On Behalf Of Angel Gabriel
> Sent: Monday, September 23, 2002 7:09 AM
> To: 'Nigel Metheringham'
> Cc: Mailman (E-mail)
> Subject: [Mailman-Users] RE: Diagnosing duplicates [Was:Now MTA
> tweaking!]
> 
> 
> Okay, this is a one way list, and I can't get hold of the dups. My email
> didn't get any dups, so I can't check either, and I really DON'T want to
> replicate it!! I'm going to assume that the problem is my end. If it's
> mailman screwing up, how can I go about cleaning my list? And if it's my
> MTA, how do I fix that??
> 
> 
> -----Original Message-----
> From: Nigel Metheringham
> [mailto:Nigel.Metheringham at dev.InTechnology.co.uk]
> Sent: Monday, September 23, 2002 12:52 PM
> To: Angel Gabriel
> Cc: Mailman (E-mail)
> Subject: Diagnosing duplicates [Was:Now MTA tweaking!]
> 
> 
> Change in subject line - its a different thread...
> 
> On Mon, 2002-09-23 at 12:32, Angel Gabriel wrote:
> > I decided to send out my list over the
> > weekend... I came in today, *monday* and I found that a LOT of email boxes
> > had gotten repeat emails, and really pissed off my subscribers. And I
> don't
> > mean like two or three I mean REPEAT emails, like 12, 13. How can I found
> > out what caused this?
> 
> The answer is you need to get at least 2 of the duplicates (ideally all
> the duplicates that reached a single address), with the full headers -
> specifically you need the received lines.
> 
> You then compare the received headers on each one and work out where the
> paths of the 2 mails diverged.
> 
> This could be:-
>   - the original poster sent several copies (happens quite often)
>     in this case you see the received lines are different
>     at every stage
>   - the senders MTA duplicated it
>     (first - thats the bottom one in the message headers - received
>     line is exactly the same, the rest are different).
>   - mailman duplicated it
>     (different received lines on the list delivery MTA)
>   - the list delivery MTA duplicated it (subtly different)
>   - someone's virus scanner reinjected it (they *must* die!!!)
>   - someone's vacation mailer reinjected it (they must die and their
>     whole domain be blocked - actually same applies for the virus
>     scanner too).
> 
> There are other possibilities too... and never underestimate how
> determined some idiots can be to loop your mail.
> 
> 	Nigel.
> --
> [ Nigel Metheringham           Nigel.Metheringham at InTechnology.co.uk ]
> [ - Comments in this message are my own and not ITO opinion/policy - ]
> 
> 
> 
> 
> 
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