* Scott Techlist via mailop <mailop@mailop.org>: > >I'm using the "registrar-servers.com" nameserver as a pretty good predictor > >of spamminess. There are few exceptions of > >legitimate senders who think they need such registration info protection but > >they can be handled by individual exceptions. > > Hans-Martin > Can you elaborate on how you use it? I'd like to implement that.
He probably checked the NS records of the domain and when they point to DNS servers operated by registrar-servers.com: # host -t ns doktorapotheke.nl doktorapotheke.nl name server dns1.registrar-servers.com. doktorapotheke.nl name server dns2.registrar-servers.com. # host -t ns doktorpillen.de doktorpillen.de name server dns1.registrar-servers.com. doktorpillen.de name server dns2.registrar-servers.com. Bonus: In Postfix you can block those using check_sender_ns_access (or at least put them on HOLD) Ralf Hildebrandt Charité - Universitätsmedizin Berlin Geschäftsbereich IT | Abteilung Netzwerk Campus Benjamin Franklin (CBF) Haus I | 1. OG | Raum 105 Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 ralf.hildebra...@charite.de https://www.charite.de _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
