Rainer Frey (Inxmail GmbH):
> On Wednesday 08 October 2008 00:52:10 Noel Jones wrote:
> > Wietse Venema wrote:
> > > The SMTP client's source IP address is controlled with smtp_bind_address,
> > > otherwise it is inherited from inet_interfaces (when this specifies
> > > one non-localhost IP address).
> > >
> > > However, making the IP address dependent on the sender domain is
> > > not yet implemented. This it requires a sender-dependent transport
> > > map.
> > >
> > > Wietse
> >
> > Will the FILTER action accept an empty nexthop?
>
> It seems it does not (at least not correctly). If the nexthop is empty, it
> seems to assume the local host (which of course leads to "mail loops to
> myself" if the recipient domain is not handled by postfix).
This is incorrect.
Postfix will complain about a mail loop REGARDLESS of the nexthop
information unless you "filter" the mail to a non-SMTP TCP port,
or unless you change the smtp_helo_name on the smtp delivery agent.
Wietse
