[Mailman-Users] Duplicate Emails to Members of Two Lists
jeffg at turners.com
Tue Dec 21 22:23:18 CET 2010
On Mon, 20 Dec 2010 10:14:53 -0800, "David Cunningham" <davec at mecnet.net>
> Hi All,
> I have a problem where users are listed on two separate lists, then
> the same email is sent to both lists, and they get two copies.
> For example, joe at test.com is on lists test1 at lists.test.com and
> test2 at lists.test.com. Dan at test.com sends an email to both
> test1 at lists.test.com and test2 at lists.test.com. So, joe at test.com get's
> two copies of the same email, one from each list.
> I know that the "nodupes" feature is only designed to stop duplicates
> in the event that a user is specifically defined in the email. For
> example, it works great when dan at test.com sends an email to
> test1 at lists.test.com and CCs joe at test.com directly. Joe at test.com only
> gets one copy.
> But, I have users insisting that before I upgrade to the latest
> version of Mailman, this also worked when users were on multiple lists.
> Does anyone have any ideas?
You don't mention what version you are currently running. You want to use
umbrella lists. You can read more about it at
More information about the Mailman-Users