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Handling Undeliverables

From: Adam Clark (chumblybumoptushome.com.au)
Date: Wed Jan 07 2004 - 23:39:34 CST


Hey all,
  We are moving our email system from postfix to Exchange.
We have been using postfix to forward onto a groupwise system
by .forward files and /etc/aliases entries. Is it possible to set postfix
up to check other mail servers before it determines whether or not it
is undeliverable.

We will have to slowly migrate our users so as we delete accounts from
postfix, we want to be able to make it check our exchange box to see if
accounts are available there.

Adam