> On Jun 6, 2018, at 9:13 AM, Vsevolod Stakhov <[email protected]> wrote: > > On 06/06/2018 16:55, Steve Atkins wrote: >> >> >> IPv4 blacklists will always list 127.0.0.2 and never 127.0.0.1. >> IPv6 blacklists will always list ::FFFF:7F00:2 and never ::FFFF:7F00:1. >> Domain based blacklists will always list "TEST" and never list "INVALID". > > I wish everybody follows that guidelines, but... > > % host TEST.multi.surbl.org > Host TEST.multi.surbl.org not found: 3(NXDOMAIN) > > % host TEST.multi.uribl.com > Host TEST.multi.uribl.com not found: 3(NXDOMAIN) > > % host TEST.dbl.spamhaus.org > TEST.dbl.spamhaus.org has address 127.0.1.2 > > % host TEST.uribl.spameatingmonkey.net > Host TEST.uribl.spameatingmonkey.net not found: 3(NXDOMAIN) > > % host TEST.public.sarbl.org > TEST.public.sarbl.org has address 127.0.0.2 > > % host TEST.uribl.rspamd.com > TEST.uribl.rspamd.com has address 127.0.0.2 > > Hence, only half of Domain based blacklists that I know about support > the TEST address. That's why I prefer to test something less artificial > in this particular case.
Checking other things is a reasonable defensive maneuver for your users, but the blacklists that don't support those test addresses are kinda broken and should really be fixed by their operators (and, perhaps, be treated as broken by health check automation until they do so). Cheers, Steve > >>> >>> For URL black lists it is not that clear: in Rspamd, for example, I >>> monitor if 'facebook.com' is blacklisted by this list, however, I'm not >>> 100% sure that it is the correct approach. >> >> RFC 5782 is the reference to wave at people. >> https://wordtothewise.com/2018/05/spamcannibal-is-dead/ wraps a bit of >> friendlier wording around it. >> >> Cheers, >> Steve >> _______________________________________________ >> mailop mailing list >> [email protected] >> https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop >> > > > _______________________________________________ > mailop mailing list > [email protected] > https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop _______________________________________________ mailop mailing list [email protected] https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
