Quoting Thomas T. Veldhouse (veldy at veldy.net):
> Anybody know how to get postfix to work with procmail in such a way as to
> filter out emails such as this on a global level?  I currently use procmail
> for individual users.

/etc/procmailrc
-- 
Bob Tanner <tanner at real-time.com>       | Phone : (952)943-8700
http://www.mn-linux.org                 | Fax   : (952)943-8500
Key fingerprint =  6C E9 51 4F D5 3E 4C 66 62 A9 10 E5 35 85 39 D9