Hide local IP from non delivery notifications

[Claudio Corvino]

You're right, I think is the only way, or at least one of the simple method
to accomplish this.
I'll try, thanks!

Regards

Claudio


Il mar 14 feb 2023, 19:35 John Stoffel <john at stoffel.org> ha scritto:

> >>>>> "Claudio" == Claudio Corvino <c.corvino81 at gmail.com> writes:
>
>
> > I have an external MTA configured with Postfix that delivers email to an
> internal IMAP/LMTP
> > Dovecot server configured to bind an LDAP to check if users exist.
>
> You should have postfix do the checking for whether or not users exist
> and then have postfix reject and deny the message.  Then you don't
> care because the IP of the postfix server is almost certainly your MX
> server.
>
> > If the user does not exist, my MX sends a non delivery notification,
> > and into the e-mail there's the local IP address of the Dovecot
> > server.
>
> > I can't find a way to remove or hide that IP, here is an example of line
> that contains the IP
> > (with X) that I would like to hide/remove:
>
> > "The mail system
>
> > <user at domain>: host hostname.domain.com[XXX.XXX.XXX.XXX] said: 550"
>
> > Thanks in advance!
>
> > Cheers
>
> > --
> > Claudio
>
>
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