[EXTERNAL] Re: Separating Dovecot and Postfix

[White, Daniel E. (GSFC-770.0)[NICS]]

Many thanks, Jeff.
Online documentation is not clear.  Everything implies both are necessary.

-----Original Message-----
From: Josef 'Jeff' Sipek <jeff.sipek at open-xchange.com>
Date: Friday, May 14, 2021 at 08:40
To: Daniel White <daniel.e.white at nasa.gov>
Cc: "dovecot at dovecot.org" <dovecot at dovecot.org>
Subject: [EXTERNAL] Re: Separating Dovecot and Postfix

    On Fri, May 14, 2021 at 12:37:15 +0000, White, Daniel E. (GSFC-770.0)[NICS] wrote:
    > I am struggling to update a very old set of mail servers.
    > Some are supposed to be relays (MTAs by my understanding) while others are
    > where the mailboxes live (MDA)
    > 
    > In rebuilding the MDA servers, is postfix required on the same server or
    > can dovecot connect to postfix on a separate MTA server ?  The old MDAs
    > have both installed, but the config files are a mess.

    They can live on different servers.  I have two - one with postfix and
    mailman, and a second one with dovecot.  Postfix delivers mail to dovecot
    via lmtp.

    Jeff.