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Re: [Asrg] Wierd reverse DNS resolution might affect spam filters

2006-06-24 20:23:43
der Mouse <mouse(_at_)Rodents(_dot_)Montreal(_dot_)QC(_dot_)CA> wrote:

That is, given an address, you do an rDNS lookup and get a set of
names (usually zero or one, but not always).  Do fDNS lookups on
those, resulting in a set of addresses for each one; any which do
not include the original address in their sets should be discarded.
(If this leaves zero names, well, treat the IP as having no rDNS.)

Should following CNAMEs be included here?  I can see arguments both
ways.

Seth

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