Another list participant's theory is that perhaps they're checking HELO domains. If a certain server is HELO'ing as an IP address, that could explain it.
Cheers, Al On Thu, Jan 25, 2018 at 4:46 PM, Carl Byington <c...@five-ten-sg.com> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA512 > > On Wed, 2018-01-24 at 09:30 -0500, Al Iverson wrote: >> Smells like a Fasthosts misconfiguration from here. > > If they are doing ip queries against the DBL for all connections, they > will be refusing all incoming email. One might think that would be > quickly noticed and corrected. Perhaps they only do those queries for > some subset of the inbound mail. > > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v2.0.14 (GNU/Linux) > > iEYEAREKAAYFAlpqUE0ACgkQL6j7milTFsGNjACfYSmydzRYtgQFnFZ6y/VIE/lE > gkAAn17pVxqmSW6Pbr+ozUxSfJKbTRLS > =UIp5 > -----END PGP SIGNATURE----- > > > > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop -- al iverson // wombatmail // miami http://www.aliverson.com http://www.spamresource.com _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
