On Tue, 4 Apr 2006, David Saez Padros wrote:
> ok, but what about +ignore_unknown ? dns_again_means_nonexist is ok
> for a workaround but not for every day use (as i have to detect which
> domains have problems and manually add them to that list). It's
> +ignore_unknown suposed to make the condition not to defer whith this
> kind of errors ? anyway it a lookup that defers could be also treated
> as a unknown result ...
dns_means_nonexist makes a temporary error look like "not found".
+ignore_unknown causes "not found" to be ignored, so these two options
do interact.
But +ignore_unknown on its own won't stop a defer because when a DNS
lookup gives a temporary error, you don't know if the host is unknown or
not. Consider a major network failure that causes lots of nameservers
are unreachable...
--
Philip Hazel University of Cambridge Computing Service
Get the Exim 4 book: http://www.uit.co.uk/exim-book
