From: Wietse Venema (no email)
Date: Sun Dec 01 2002 - 08:42:00 EST
Postfix does not replace CNAME domain names in To/Reply-To message
headers by the referenced hostnames. The code simply does not exist
to do so.
Either your mail submission program replaces the domain names, or
some non-Postfix MTA on the way from sender to recipient.
Wietse
> Hi-
>
> I've been looking all over and can't find the answer to this one. I have a
> CNAME alias (sabami.seaslug.org) with a local user's group that I want to use
> as my mail server's hostname, so I've got this in my postfix config:
>
> mydestination = localhost, localhost.$mydomain, $mydomain, sab.rresearch.com, sabmail.rresearch.com, mail.dsab.rresearch.com, $myhostname
> mydomain = sabami.seaslug.org
> myhostname = sabami.seaslug.org
> myorigin = sabami.seaslug.org
>
> to make sure I get all my aliases in the mydestination (is that necessary?). The way
> things are configured is like this:
>
> sabami.seaslug.org CNAME mail.dsab.rresearch.com
> sab.rresearch.com CNAME mail.dsab.rresearch.com
> mail.dsab.rresearch.com A 12.235.153.213
>
> where that mail.dsab host is a dynamically updated DNS entry at a site where I have
> direct control over the DNS server. What I want is for @sabami.seaslug.org to be the
> FQDN that gets used on all email leaving my mail server. But, what seems to be
> happening is that it gets rewritten (in the envelope sender, To/Reply-to header
> addresses, at least) to @mail.dsab.rresearch.com. I assume there's some logic in
> there somewhere that is converting CNAME references into the hostname on an A
> record?? Is there any way to get what I want here?
>
> Thanx!
> --
> Scott Blachowicz
>
>
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