On Fri, May 08, 2009 at 01:45:25PM -0400, Wietse Venema wrote:
> Patrick Saweikis:
> > We are now trying to incorporate a way to create redundancy
> > on the relay end, so currently we may just have the transport map set to
> > "smtp:[10.1.1.7]" and are trying to find a way to tell it that if it
> > cannot relay to the transport_maps location, try this other. I had done
>
> Try using smtp_fallback_relay=smtp:[1.2.3.4] in main.cf, or "-o
> smtp_fallback_relay=smtp:[1.2.3.4]" in master.cf. The second form
> takes no spaces around the "=".
But, you also may need to make sure that the primary nexthop does not
do hard 5XX rejects.
http://archives.neohapsis.com/archives/postfix/2006-11/thread.html#1128
Far better to find a port 587 relay that does SASL auth, and will accept
your traffic from any source IP...
--
Viktor.
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