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!)/:
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
