[Mimedefang] Macro Built-In Defaults / _ Macro Question
Kevin A. McGrail
kmcgrail at pccc.com
Fri Jul 17 17:00:25 EDT 2009
> But you are already given the result of Sendmail's reverse-lookup in the
> $hostname argument to filter_relay and friends, and it's in the
> $RelayHostname global variable after filter_begin.
Thanks. Might be good to document that in the macros portion just for other
poor saps like me who stupidly try and reinvent a wheel.
> But even if you make a duplicate DNS lookup, it should be fast because
> the answer is cached (you ARE running a caching DNS server, right? :-))
Of course ;-) but I don't cache nxdomain's which adds 30 seconds to the
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