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. -- -------------------------------------------------------- Dave Lugo [email protected] LC Unit #260 TINLC Have you hugged your firewall today? No spam, thanks. -------------------------------------------------------- Are you the police? . . . . No ma'am, we're sysadmins. -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
