[Mailman-Users] Changing the To: address

[Van Sederburg]

I provide a mailman mailing list for an organization that has their own 
domain, but of course the mailing list is *not* a part of that domain. 
i.e., the list is for group at them.com, but the list resides at mydomain.com.

To make it easy to send mail to the list, they have an alias set up at 
them.com that forwards mail directly to the mailing list at mydomain.com, 
which makes it look like the list is at their site. That enables their 
members to just address mail to "list at them.com" and not need to worry that 
the list isn't actually at "them.com".

However, if somebody uses the "official" list address at mydomain.com, then 
that's what the To: address shows in the message everyone receives, which 
looks odd to certain easily agitated users.

Is there any way I can intercept the incoming mail, and if it is explicitly 
to list at mydomain.com, change the To: address to list at them.com before it 
goes out so it looks like they used the alias?

It's really just a "looks" thing, but it would be nice.

Thanks for any help.

Van Sederburg