System Support:
> Thanks. I do not see the ORPT option in my log. Is it implied
> by one of the other entries?
Postfix normally does not log SMTP commands. That would be alot of logging.
> As far as the 'blunt tool', all of the mail processed by this
> instance will be relayed to Amazon. What are the disadvantages
> of the smtp_discard_ehlo_keywords that you suggested in that
> case?
You don't have to use it. Leave it alone.
Wietse
>
> On 3 Feb 2015 at 16:41, Wietse Venema wrote:
>
> > System Support:
> > > Changinig from WPNY to [email protected] did fix the problem.
> > > I have not had to add the domain in the past, but I was not relaying
> > > to Amazon, and Amazon does verify the source
> > > address, and I guess that they require a fully qualified name.
> > > And, based on your other response, I gather that it is not possible
> > > to have a rewrite rule to do this automatically.
> >
> > Amazon was objecting to this SMTP command:
> >
> > RCPT TO:<[email protected]> ORPT=rfc822;WPNY
> >
> > That is, the problem was not with the recipient address, but with
> > the ORPT parameter for delivery status notifications.
> >
> > The alternative would be to disable Postfix DSN support with:
> >
> > /etc/postfix/main.cf:
> > smtp_discard_ehlo_keywords = dsn, silent_discard
> >
> > so that it would send:
> >
> > RCPT TO:<[email protected]>
> >
> > but that would be a blunt tool.
> >
> > Wietse
> >
>
> ...don
>
> support (at) microtechniques.com
>
>
