[Mailman-Users] Getting duplicates when people CC list
Brad Knowles
brad at stop.mail-abuse.org
Sun Apr 30 14:45:50 CEST 2006
At 8:28 AM +0000 2006-04-30, Tony G wrote:
> I do not get dupes of all mails otherwise I'd suspect double subscription.
> The Avoid Duplicates flag is set. This only happens for mails that have
> the list in the CC - I understand the dupe flag is for when people use
> ReplyAll and the recipient is in both the list of subscribers and the CC
> for the mail.
It's not just the recipient, but the exact same recipient
address. So, if you're subscribed to the list with one address, and
they cc: a different address of yours, then the system has no way to
tell that these are both the same person.
> I believe the code is supposed to filter duplicate
> Message-IDs to a given recipient no matter how those dupes are generated,
> but I'm getting them. Any ideas?
No, the code doesn't work at the Message-ID level. It works at
the level of the listed recipients in the To: and CC: headers.
If you want filtering done at the Message-ID level, then you need
to apply that on your end -- either use a program like procmail to
filter all your incoming mail, or set up your MUA to discard
duplicates, etc....
There's nothing more that Mailman can do to help you.
--
Brad Knowles, <brad at stop.mail-abuse.org>
"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."
-- Benjamin Franklin (1706-1790), reply of the Pennsylvania
Assembly to the Governor, November 11, 1755
LOPSA member since December 2005. See <http://www.lopsa.org/>.
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