Change dovecot hostname

[Scott W. Sander]

Here are some example headers from an email sent from an internal Exchange
account to an account on Dovecot (user at domain.test):

-------

Received: from mail.domain.test
    by appserver4.domain.com (Dovecot) with LMTP id z7RGLzH4uldlPAAAxdv4Dw
    for <user at domain.test>; Mon, 22 Aug 2016 09:03:45 -0400
Received: from mail.domain.com (exchangefe1.domain.com [10.1.0.225])
    (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA (256/256 bits))
    (No client certificate requested)
    by mail.domain.test (Postfix) with ESMTPS id BEB1B200C4
    for <user at domain.test>; Mon, 22 Aug 2016 09:03:45 -0400 (EDT)
Received: from exchangebe2.domain.com
 ([fe80::31cb:366e:5ce0:a40c]) by exchangefe1.domain.com ([::1])
 with mapi id 14.03.0294.000; Mon, 22 Aug 2016 09:03:46 -0400

-------

I want the part that says "by appserver4.domain.com (Dovecot)" to say "by
mail.domain.test (Dovecot)".  I don't want it to say the FQDN of the actual
host server that is running Dovecot.

The server currently referenced as "mail.domain.test" in the headers is
postfix running on the same machine.

Thanks in advance!

On Fri, Aug 19, 2016 at 7:11 PM Joseph Tam <jtam.home at gmail.com> wrote:

> "Scott W. Sander" writes:
>
> > I have noticed that the name of my private server running dovecot appears
> > in email headers rather than the public-friendly name of my server.
>
> Which headers are you taking about?
>
> If you're talking about Received: headers, that's usually inserted by
> your MTA, not dovecot.
>
> Joseph Tam <jtam.home at gmail.com>
>