On 4/27/2011 10:57 AM, Casartello, Thomas wrote:
Hello,
We are going to begin the process of changing from one domain
name to another in our organization. Postfix functions as our
MX server and then forwards on to our Microsoft Exchange
environment. We need to keep both domains active for a year,
but because of the way the spam filter works, I can’t just
directly forward on the messages from both domains to
Exchange. I need to rewrite our old domain to our new domain
in postfix before it gets processed by our spam filter.
However I notice that when you do a rewrite for an entire
domain it bypasses the relay recipient table I have setup
(rejects recipients that don’t exist in our Active
Directory/Exchange system using LDAP.) Essentially I need to
have the old domain rewritten to the new domain, but also have
the recipient’s address validated before it is rewritten.
Because of the way our spam filter works I have to reject
recipients that don’t exist in our organization at the outside
as well as rewrite the domain name. Is this possible?
Tom
Use smtp_generic_maps to rewrite old domain -> new domain
during delivery to the internal mail server.
http://www.postfix.org/ADDRESS_REWRITING_README.html#generic
generic:
@old.tld @new.tld
-- Noel Jones
