[Mailman-Users] Duplicate Emails to Members of Two Lists

[David Cunningham]

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?

Dave