On 2024-05-31 09:35, Gellner, Oliver via mailop wrote:
Hi list, there are countless online services which offer to verify email addresses and advertise this as "we help you to prune your contact lists". Some of them, like hunter[.]io or zerobounce[.]net, behave very similar to spammers in the past and are going to great lengths to hide or spoof their identity. They move around their server ip addresses and spin up random domains to perform their verification checks from. Some examples of what they are using: status@mallsafari[.]com dick@bowgutter[.]com dylan@valencemeasure[.]com gays@braketruckszone[.]com november@listsopinion[.]com I was wondering if anyone knows a RBL or database which collects and tries to keep track of the domains and IP addresses used by such list washing services. -- BR Oliver
Hi Oliver, I am not aware of a service that focuses on blocking contact list verifiers / address verifiers, but I have seen some of them blocked via Spamhaus Zen. - J _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
