[Mailman-Users] Suprised unsubscribes

Brian Carpenter brian at emwd.com
Fri May 18 23:51:23 CEST 2007

Thanks Mark. You led to me to the answer. Actually here is what happended.

Client subscribed an e-mail forwarded to a list. This e-mail forwarder
forwards to some other mailing lists. Well someone unsubscribed the e-mail
forwarded from a list and the unsubscribe notification was sent to it and
then forwarded on to some other mailing lists. So people from these other
lists also receive unsubscribe notifications and panic.

"The answer my friend is blowing in the wind (log files), the answer is
blowing in the wind (log files)."

Kind regards,
Brian Carpenter
EMWD -  Executive Officer

-----Original Message-----
From: Mark Sapiro [mailto:msapiro at value.net] 
Sent: Friday, May 18, 2007 4:01 PM
To: Brian Carpenter; mailman-users at python.org
Subject: Re: [Mailman-Users] Suprised unsubscribes

Brian Carpenter wrote:
>I had a client report to me this morning that several of his lists 
>mysteriously unsubscribed members of the list without their permission 
>or interventions. As far as I can tell these members were not 
>generating any bounces. I checked the FAQ and archives of this list but 
>I found nothing that would explain this behavior.
>Could there be any other possible reasons for this other than:
>1. Intentional action by member
>2. Intentional action by administrator
>3. Bounce removal

Check Mailman's subscribe log? The unsubscribes and reasons should be there.

Members with stale bounce info can be disabled (or unsubscribed if
bounce_you_are_disabled_warnings = 0) if bounce_score_threshold is lowered
to a value <= the member's stale bounce score.

I suppose you could add to your list 'intentional action by a third party
who somehow compromised user passwords, the list admin password or the site
password or found an unknown security hole'. I don't think
this is likely, particularly the security hole.	
Mark Sapiro <msapiro at value.net>       The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan

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