On Mon, Nov 29, 2010 at 01:22:31PM -0500, Stirling, Scott wrote:
> > This requires a second internal delivery hop.
> >
> > The first to separate out the recipients or senders that are candidates
> > for bypassing Postini into a separate queue, and the second to route
> > appropriate mail from that queue, either to Postini or not, based
> > on the remaining criterion.
>
> Sounds like one option would be to setup a separate Postfix instance and
> relay to it in sendmail based on Sender (using something like this
> sendmail mod, http://anfi.homeunix.net/sendmail/smarttab.html).
Yes.
> The final step is to include/exclude that incoming mail for delivery to
> either Postini or not based on the recipient's address. Is
> recipient-based alternate routing possible once the Sender aspect is
> resolved with the additional internal hop? Any pointers?
Of course, that's what the Postfix transport table (akin to Sendmail's
mailertable) does.
http://www.postfix.org/transport.5.html
No non-toy MTA fails to provide a per-domain transport override mechanism.
--
Viktor.
