with sendmail, if an entry like this:
joe: [EMAIL PROTECTED]
is in /etc/aliases then any message sent to joe will be bounced back with
a helpful note about joe's new email address. this way you don't have to
forward email to joe's new address for years after they leave. eventually
joe's correspondents learn to use joe's new address. if i only forwarded
joe's email, his correspondents would have no incentive to use his new
address and i hate seeing mail to joe in the queue years after his
departure.
before i work on a script to do this with qmail i thought i'd ask if
anyone has done this before. i'd rather not re-invent the wheel.
---Matt