[Mailman-Users] Duplicate Subscribe/Unsubscribe Notifications

Ki Song ki at knifecenter.com
Fri Jan 26 22:07:08 CET 2007

>>> It could be that the admin has a filter rule in place that duplicates
>>> the mail and makes it look like it is sent twice.
>> I am certain it is the EXACT same message.
>> How do I know this?
>> The message ID's for the duplicate emails are exactly the same:
>> Message-ID: <mailman.2147.1169820047.30843.list at mailserver.domain.com>
> OK. It is the same message. Did you check the filter rules in your
> email client as Dragon suggests to be sure that they are not
> responsible for duplicating the message?
I checked the filter rules. I could not find anything that could possibly
duplicate messages. There is only one reference to the messages that are
being duplicated (the filter/rule looks for where the message is being SENT

> Also, What is the contents of the list's owner and moderator
> attributes. Are you or something that forwards to you listed twice?
Where could I find these attributes? Is it on the web admin interface, or is
it somewhere else?

> Also, check for that Message-ID in Mailman's 'smtp' log and see how
> many recipients it was sent to.

The message-ID from mailman's smtp log shows something interesting. Every
message that is duplicated, shows the same message-ID, but it says that it
is being sent to 2 recipients. Is that normal? I ask because as far as I
know, these subscribe messages are being sent to me, the administrator, and
the actual email that is being subscribed/unsubscribed. Is that normal, or
would it be two different message-ID's, if only 1 message was being sent to
me and 1 message was being sent to the email address that is being

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