Mailman experts,
We are running Mailman version 2.1.10 on a Centos 5.2 system. Recently a user sent a RECALL command to one of our lists to retract a message. This seems to have created an infinite loop relating to bounces.
For some reason something got corrupted, probably related to the Message ID as shown from one of the log entries below:
Feb 23 11:00:00 2009 (12635) forwarding unrecognized, message-id: <!~!UENERkVCMDkAAQACALoAAAAAAAAAOKG7EAXlEBqhuwgAKypWwgAAbXNwc3QuZGxsAAAAAABO SVRB+b+4AQCqADfZbgAAAABDADoAXABEAG8AYwB1AG0AZQBuAHQAcwAgAGEAbgBkACAAUwBlAHQA dABpAG4AZwBzAFwAZABvAG0AawBlAGsAXABEAGUAcwBrAHQAbwBwAFwAMgAwADAANgAtADAANwBc AE0AYQBpAGwAXABPAHUAdABsAG8AbwBrAC4AcABzAHQAAAAYAAAAAAAAADxQoBwV+EpCpSL/ibME zfjCgAAAGAAAAAAAAAA8UKAcFfhKQqUi/4mzBM34RFBLAAAAAAAQAAAAmKK2hHaUmk2V0Gy86is0 y0IAAABbQU5OT1VOQ0VdIEJ1Y2NhbmVlciBXb21lbidzIFNvY2NlciBhbmQgU29mdGJhbGwgIktp ZHMgTmlnaHQgT3V0IgA=@beloit.edu>
I get one of these bounce messages about every 10 minutes or so. This is not a pending message. So what might be going wrong and how do I clean up the list so that the request stops bouncing? Is there some file I can empty out?
Tim Tyler
Network Engineer
Beloit College
Tim Tyler wrote:
We are running Mailman version 2.1.10 on a Centos 5.2 system. Recently a user sent a RECALL command to one of our lists to retract a message. This seems to have created an infinite loop relating to bounces.
For some reason something got corrupted, probably related to the Message ID as shown from one of the log entries below:
Feb 23 11:00:00 2009 (12635) forwarding unrecognized, message-id: <!~!UENERkVCMDkAAQACALoAAAAAAAAAOKG7EAXlEBqhuwgAKypWwgAAbXNwc3QuZGxsAAAAAABO SVRB+b+4AQCqADfZbgAAAABDADoAXABEAG8AYwB1AG0AZQBuAHQAcwAgAGEAbgBkACAAUwBlAHQA dABpAG4AZwBzAFwAZABvAG0AawBlAGsAXABEAGUAcwBrAHQAbwBwAFwAMgAwADAANgAtADAANwBc AE0AYQBpAGwAXABPAHUAdABsAG8AbwBrAC4AcABzAHQAAAAYAAAAAAAAADxQoBwV+EpCpSL/ibME zfjCgAAAGAAAAAAAAAA8UKAcFfhKQqUi/4mzBM34RFBLAAAAAAAQAAAAmKK2hHaUmk2V0Gy86is0 y0IAAABbQU5OT1VOQ0VdIEJ1Y2NhbmVlciBXb21lbidzIFNvY2NlciBhbmQgU29mdGJhbGwgIktp ZHMgTmlnaHQgT3V0IgA=@beloit.edu>
I get one of these bounce messages about every 10 minutes or so. This is not a pending message. So what might be going wrong and how do I clean up the list so that the request stops bouncing? Is there some file I can empty out?
Each one of these is a new message sent to the LISTNAM-bounces address and forwarded to the list owner as an unrecognized bounce. I'm only guessing, and this doesn't make much sense, but RECALL is an nntp command so somehow some news server is repeatedly sending this command to the list until it gets a response. Maybe it will eventually give up?
If this is really a loop involving Mailman, you could turn off bounce_unrecognized_goes_to_list_owner, and that should stop it, but I doubt this is the issue.
Check your MTA log and see where these messages are coming from.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
Mark, I believe the RECALL command is an Outlook/Exchange horror that does not play well with many "normal" email systems.
http://office.microsoft.com/en-us/outlook/HA010917601033.aspx
At 07:40 AM 2/24/2009, you wrote:
Each one of these is a new message sent to the LISTNAM-bounces address and forwarded to the list owner as an unrecognized bounce. I'm only guessing, and this doesn't make much sense, but RECALL is an nntp command so somehow some news server is repeatedly sending this command to the list until it gets a response. Maybe it will eventually give up?
If this is really a loop involving Mailman, you could turn off bounce_unrecognized_goes_to_list_owner, and that should stop it, but I doubt this is the issue.
Check your MTA log and see where these messages are coming from.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
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Kirke Johnson Internet: kjohnson@pcc.edu Email Administrator, TSS , Sylvania Campus http://www.pcc.edu/ Portland Community College, Portland, OR, USA (503) 977-4368
Kirke Johnson wrote:
Mark, I believe the RECALL command is an Outlook/Exchange horror that does not play well with many "normal" email systems.
http://office.microsoft.com/en-us/outlook/HA010917601033.aspx
That makes much more sense. Thanks for the info.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
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Tim Tyler