Nigel Metheringham edited this page Nov 29, 2012 · 2 revisions

Q0613

Question

I have set fallback_hosts on my smtp transport, but after the error [sem@example.com](mailto:sem@example.com) cannot be resolved at this time Exim isn't using them.

Answer

fallback_hosts works only if an attempt at delivery to the original host(s) fails. In this case, Exim couldn't even resolve the domain example.com to discover what the original hosts were, so it never got as far as the transport. However, see `FAQ/Routing_to_remote_hosts/Q0315`_ for a possible solution.


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