From: Victor Duchovni (Victor.DuchovniMorganStanley.com)
Date: Wed Dec 12 2007 - 14:08:30 CST

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On Wed, Dec 12, 2007 at 11:42:04AM -0800, Paul Rogers wrote:

> --- Wietse Venema <wietseporcupine.org> wrote:
> > I could have avoided this confusion by asking you to show the smtpd
> > line after edits.
>
> What I'm trying to do here is run this as a standalone, dial-up my ISP
> and relay one message a day to some friends. From the reading I've
> done, including one somewhat erroneous one of that period from RedHat
> and your "blue & yellow boxes" documentation, I figured the smtpd would
> handle messages coming to this postfix server from other machines on a
> local lan--which I'm not doing. But I admit, I'm still confused about
> who does what, trying to relay a message from my old box to/through my
> ISP's message server & my account there. Seems like I got the
> sender-canonical right.

Probably not, the right answer these days, is to not use
sender_canonical_maps. Rather use generic(5) for outgoing, virtual(5)
for rewriting your own recipients to mailboxes and canonical(5) if
necessary for rewriting external headers to internal form for inbound
mail (not applicable to submission only MTA that don't receive email
from outside). Do not use sender/recipient canonical rewriting.

--
        Viktor.

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