[Mailman-Users] exclude lists question
mprewitt at teris.com
Thu Jan 6 23:14:24 CET 2011
Thanks.. Somehow I must have missed that not to mutually exclude note.
I'll read the email and thread for more information.
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From: Bill Cole [mailto:mailmanu-20100705 at billmail.scconsult.com]
Sent: Thursday, January 06, 2011 12:19 PM
To: mailman-users at python.org
Subject: Re: [Mailman-Users] exclude lists question
Mark Prewitt wrote, On 1/6/11 1:54 PM:
> Good Day,
> I have two lists that have essentially the same members except for one
> person. Unfortunately, they are client facing lists and we have different
> clients using them so we cannot combine them or eliminate one which would
> make this so much easier.
> List a has 5 people on it
> List b has 6 people on it
> When we send an email to lista& listb many of the people get 2 emails, so
> we put listb in the lista exclude list and lista in the listb exclude list.
> What happened then was surprising, no one got any emails, even the non-duped
> people (as far as I have been able to tell anyway).
This is as documented in the web interface's "details" page for
Do not specify this list address mutually in the exclude list
configuration page of the other list, or members of both lists
won't get any message.
> Anyone have an idea why this would happen and how to resolve it?
This has been raised here before and answered, e.g. the second half of my
long message at
The setup I described there works, i.e. my regular_exclude_lists settings
for 4 siblings is like this:
list4: list1, list2, list3
list3: list1, list2
This assures that no list excludes a sibling list that excludes it in return.
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