On Mon, 19 Sep 2016, Mike Tubby wrote:
>
> There is no 'law' that says your reverse DNS must work and its simply
> dangerous to use the heuristic no rDNS => High probability of SPAM.
I respectfully disagree. It's as dangerous as any other very effective
spam filtering method - high accuracy, low FPs.
Yes, you should have some way to override the missing rDNS check. But
rejecting on missing rDNS is mostly safe, in my opinion and experience.
--
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Dave Lugo dlugo@??? LC Unit #260 TINLC
Have you hugged your firewall today? No spam, thanks.
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Are you the police? . . . . No ma'am, we're sysadmins.
