Jannis Kafkoulas wrote:
Hi Noel,
Actually I wanted to use it in production after a successful test,
but as I see now I should change my mind and use a "real" new instance.
But I'm afraid that would cause new problems, look, what I exactly need:
We communicate with some partner companies in an extranet.
If an email
a) goes to the partner @example_domain1.com (then send it to the 2nd
instance) and
b) this email contains a specific string in the subject ([CR])
then it should be rejected or otherwise delievered to @dst_domain1.com
(by 2nd instance).
Rethink your setup. Do not reject mail from a second instance
of postfix.
You may have better luck using a more flexible content filter,
such as custom SpamAssassin rules to do what you need. If you
really need to reject the unwanted mail, you need to use a
smtpd_proxy_filter or milter to examine the mail before it is
queued. There are several milters that make use of
SpamAssassin, or amavisd-new is reported to work well as a
smtpd_proxy_filter.
--
Noel Jones
