Dnia 23.08.2023 o godz. 09:08:52 Michael Peddemors via mailop pisze: > > It continues to be a battle, but overall the traditional spammers > are still getting IP space, seems that even the historically 'good' > hosting companies are throwing in the towel lately, and letting any > one on board
Paradoxically, I consider this to be good. It may cause the recipients to stop filtering using "reputation of the ISP" - which always looked very doubtful to me (causes false positives and harms innocent senders that happen to have servers hosted at the same ISP) - and changing to filtering using more reliable indicators of actual spam. > But the trend of phishing and malware continues to grow. Keep your > head down, remember to use IP reputation as your first line of > defense. Individual IP reputation - yes. Netblock reputation - no. Only if you know that the entire netblock belongs to a spammer, it is justified to block the entire netblock. If it is just a random netblock of some ISP that just happens to contain some spamming IPs (even a lot of them) inside - no, never block the netblock as a whole. -- Regards, Jaroslaw Rafa [email protected] -- "In a million years, when kids go to school, they're gonna know: once there was a Hushpuppy, and she lived with her daddy in the Bathtub." _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
