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Subject: Re: Header Rewrites
From: Wietse Venema (wietseporcupine.org)
Date: Tue Jul 04 2000 - 16:04:51 CDT

Tass:
> I was looking through the DOCS and FAQ and thought canonical_maps may be
> the answer , but they do not seem to work for my application.

Canonical maps rewrite mail addresses.

> Since we have our server behind a NAT'd firewall, the internal IP's show
> up in the headers of outgoing email.

IP addresses are not mail addresses.

> IE: Mail goes from MailServeA (172.21.1.11) to OutgoingMail (216.13.1920)
> and off to mefoo.org. The email Headers have the 172 IP in it though,
> since that was the first SMTP handoff. If there some way to suppress or
> rewrite this ?

Postfix will not rewrite Received: headers produced by other hosts.
If you want to remove headers you have to use the Postfix content
filtering hooks.

        Wietse