spam filter and MX records
Barry Margolin
barmar at alum.mit.edu
Thu Feb 2 04:33:48 UTC 2006
In article <drpg0t$2jki$1 at sf1.isc.org>,
Merton Campbell Crockett <m.c.crockett at adelphia.net> wrote:
> There are also broken mail systems. They will deliver mail to the A
> record.
Can you name one?
I know there's a configuration option in sendmail to make it use the A
record ONLY if the best MX record points to the current server, and the
domain isn't in its local-delivery list. This is mainly useful if you
run sendmail on your firewall, but don't use split-DNS -- outside
systems use the MX record to get to the firewall, and then it use the A
record.
--
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***
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