The following plugin extracts the SendGrid ID to a Tag, now we can use it with askdns..
https://github.com/fmbla/spamassassin-sendgrid Paul On Sun, 23 Aug 2020 at 20:42, Giovanni Bechis <gbec...@apache.org> wrote: > On 8/21/20 9:28 PM, Rob McEwen wrote: > > ANNOUNCEMENT: The NEW invaluement "Service Provider DNSBLs" - 1st one > for Sendgrid-spams! > > > > ...a collection of a new TYPE of DNSBL, with the FIRST of these having a > focus on Sendgrid-sent spams. AND - there is a FREE version of this - that > can be used NOW! (/well... might need a SpamAssassin rule or two! Your help > appreciated!)/: > > > SpamAssassin plugin available at: > https://github.com/bigio/spamassassin-esp/archive/esp-v0.1.tar.gz > > We will work on improving this new type of DNSBL with more data and more > features, stay tuned. > > Giovanni > > > INFO AND INSTRUCTIONS HERE: > > > > https://www.invaluement.com/serviceproviderdnsbl/ > > > > This provides a way to surgically block Sendgrid's WORST spammers, yet > without the massive collateral damage that would happen if blocking > Sendgrid domains and IP addresses. But we're NOT stopping at the phishes > and viruses - and we're not finished! There will be some well-deserved > economic pain, that puts the recipients' best interests at heart. > Therefore, flagrant "cold email" spamming to recipients who don't even know > the sender - is also being targeted - first with the absolute worst - and > then progressing to other offenders as we make adjustments in the coming > weeks. > > > > -- Rob McEwen https://www.invaluement.com > > > >
