On Mon, Nov 29, 2010 at 03:07:43PM -0500, Stirling, Scott wrote:
> > > Thank you. With yours and Victor's input it sounds like I can do the
> > > first relay with the existing Postfix processes, configuring a
> > > sender_dependent relay to secondary instances of Postfix to handle
> > > candidates for custom routing from this Sender.
> > >
> > > Then in the secondary Postfix instances configure transport mappings
> > > with default transport to Postini but a domain transport entry to
> > map:
> > >
> > > bar.net:smtp.abc.bar.net
> >
> > The syntax of the transport map is not what you have above.
>
> Bad interpretation of the man page. After checking examples, I think it
> would be like so:
>
> bar.net smtp:[smtp.abc.bar.net]
>
> Or does it need to be:
>
> bar.net relay:[smtp.abc.bar.net]
>
> What's the underlying difference between the effect of transport
> keywords "relay" and "smtp"? Is there technically a difference between
> the relay and smtp protocols?
These are not "keywords", they are transport names. Transports are
defined in master.cf.
The "smtp" transport is for other people's domains, the "relay" transport
is for your domains that are forwarded to other SMTP servers you manage.
They are otherwise identical.
http://www.postfix.org/ADDRESS_CLASS_README.html
--
Viktor.
