On Mon, Sep 19, 2016 at 05:29:51PM -0700, li...@lazygranch.com wrote:
> The last time TLD blocking came up, the consensus of the hive was
> not to block based on TLD. (You may recall .xyz being used by
> Alphabet.) However lately I'm getting a ridiculous number of
> .stream SPAM coming through. The RBLs are getting about half.
> I have a hard time believing I will ever get legit mail from a
> .stream or a .download.
The thing is, I don't think any TLD prescreens its registrants and
limits domains to spammers only. Anyone can buy one of the new
domains, whether or not a spammer.
> FWIW, many of the .stream pass SPF, which is perhaps why the RBLs
> are not being as aggressive.
Certainly not a factor. Most significant DNSBLs operate on the basis
of spamtraps. If a host is hitting a spamtrap, it will be listed; if
not it will not be listed. FCrDNS and other niceties are irrelevant.
The DNSBL knows that the traffic is spam, because a good spamtrap is
an address which was never used.
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