On Wed, Mar 02, 2011 at 10:11:38AM -0600, I wrote without reading:
> On Wed, Mar 02, 2011 at 07:26:55AM -0800, David Newman wrote:
> > The error message in maillog is like this:
> >
> > Mar 1 13:30:04 mail3 postfix/smtpd[99904]: NOQUEUE: reject:
> > RCPT from hostB.networktest.com[1.2.3.4]: 550 5.1.1
> > <someu...@someexternaldomain.com>: Recipient address rejected:
> > User unknown in relay recipient table;
> > from=<dnew...@networktest.com>
> > to=<someu...@someexternaldomain.com> proto=ESMTP
> > helo=<localhost.localdomain>
>
> This is reject_unauth_destination in smtpd_recipient_restrictions,
It obviously is not. It's that someexternaldomain.com was found in
relay_domains, but someu...@someexternaldomain.com was not found in
relay_recipient_maps.
As alluded below, you should never list domains you do not host in
any of your address class definitions. Apparently you have done so.
Your post was inadequate to be able to further debug your mistake.
> which typically would be preceded by permit_mynetworks and if using
> SASL AUTH, permit_sasl_authenticated. If you have those permit_*
> restrictions, neither case is being met.
>
> > In main.cf, relay_recipient_maps calls
>
> No, this is wrong. The relay domain class is for when your server
> is MX host for a domain, but not the final destination. This is not
> the issue as you have described. You want per-client (mynetworks)
> or per-user (SASL AUTH) relaying.
This part is right. If you still don't get it, see:
http://www.postfix.org/DEBUG_README.html#mail
before asking again. Don't mung domain names if you want help with
mail routing issues.
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