[Exim] many incoming same emails to many users

I would like to force a few incoming mailing lists to just a central
location of some sort, that everyone who wants access to can find very
easily. There are several hundred subscribers to the same mailing lists
(softimage is the big one).

@ ways I can think of to handle this, is ask the moderator ofthe lists to
not allow more than 1 subscription from our domains, and the one account
stores the mail where everyone has access to it. The other way is to use
exim to sore all the messages in 1 location. Any thoughts worth sharing
from people on this list? Thanks..