Hi List:
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:
- Intentional action by member
- Intentional action by administrator
- Bounce removal
Any insight would be helpful. Thanks.
Kind regards,
Brian Carpenter
EMWD - Executive Officer
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:
- Intentional action by member
- Intentional action by administrator
- 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@value.net The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
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@value.net] Sent: Friday, May 18, 2007 4:01 PM To: Brian Carpenter; mailman-users@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:
- Intentional action by member
- Intentional action by administrator
- 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@value.net The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
participants (2)
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Brian Carpenter
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Mark Sapiro