On Thu, 17 Aug 2017 21:20:07 -0400 David Collier-Brown via talk <[email protected]> wrote: > Cisco owns IronPort, who owns spamcop, but neither provide any money > to spamcop. Spamcop used to be partially supported by CES, but they > bailed. > Spamhaus is a different company, and is arguably evil. >
and, to add clearly: Spamcop does not charge money to get removed from RBL Spamcop is also not perfect, no single RBL is. For effective spam control, figure out which 10-20 of the almost 500 Public and International RBL's lists your specific spam the best. (I have included the list of known and considered 'ethical' Rbl's in the six steps :) ) Spamcop is just one RBL and, for example, Spamcop does not list twitter.com - which is probably the largest spammer that still gets spam through filters. - Yet, there are many many International RBL's that do list twitter.com for the spammers they are - so, my clients have to specifically white list twitter.com domain, if they wish to receive email from twitter.com, same can be said for facebook.com - these multinationals use/leverage emails to grow and/or engage their 'products' or 'users' or whatever they are calling them. Corporate/Institutional spam and spam from 'public' email providers like @google is still problematic. But if you configure spamassassin properly, it adds to the 'score' of incoming emails and that, together with reputation, is what stops/identifies almost all spam. Plus as you said: Report to Spamcop and other reporting rbl's :) I have many accounts and traps and the only reason those accounts still get spam is to collect data... Then, ethics: People on 'shared hosting' where the host considers themselves to be 'bullet proof' and/or ignore spam complaints - should move their hosting to an ethical provider. Clients are becoming more educated and once you point out that they are hosting in a really bad place (and maybe show them examples of the rubbish their 'host' is relaying on the Internet) in my experience eventually they move their hosting... Once ISP's start figuring out that they are actually losing clients because of poor abuse management it becomes a 'money' thing and the winners are everyone... And also, who still uses a single RBL for dropping/bouncing email? - Are there still ISP's or email admins that use any RBL for 'drop/bounce' ? RBL's should be used for 'scoring' not for bouncing.... I think this is the 'secret sauce' - to use 10+ ethical RBL's for reputation scoring - assign 'points' to each RBL (larger email providers should setup dns caching) and then to also scan the email characteristics for additional scoring...- and to allow your clients to easily white list anyone and to easily black list anyone... So, spam is basically dead :) Andre --- Talk Mailing List [email protected] https://gtalug.org/mailman/listinfo/talk
