From: Victor Duchovni (Victor.DuchovniMorganStanley.com)
Date: Tue Mar 04 2008 - 21:34:44 CST

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On Tue, Mar 04, 2008 at 10:28:15PM -0500, Brian Carroll wrote:

> > > Also, if you see anything that seems incorrect in my config, feel
> free
> > > to point it out.
> >
> > DO NOT use the postfix uid/gid (89) as the owner of user mailboxes.
> This
> > uid should ONLY be used as the owner of the Postfix spool directories.
>
> As I understand my config, Postfix is my LDA.

No, Postfix is an MTA, but it MUST not own user mailboxes, use a separate
uid/gid for that. Using the Postfix uid/gid for delivery is a misuse of
the mail system, and will likely stop working in future releases (if not
already in 2.4 or 2.5).

> I use Dovecot for
> POP/IMAP. I thought I needed to have Postfix as the owner of the
> mailboxes since it is LDA. If I change to a *different* (purpose
> created?) user, how do I allow Postfix to then deliver the mail? Is
> using Postfix as the LDA a no-no also?

Postfix will deliver as any user you specify, that why the uid/gid is
configurable. It must not be "root" or the "postfix" user.

As for your original question, the log entry you show cannot be produced
by the configuration you posted. So either master.cf contains additional
settings for smtpd, or your evidence is inaccurate or incomplete.

--
        Viktor.

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