> On 3/30/23 07:37, Benoit Panizzon via mailop wrote: > > > What would be the best way to address such issues for Office365 > > customers?
My recommendation is to recognize that 1-bit binary blocklistings aren't granular enough to account for shared environments without causing false positives. Some call that a feature, some call it a bug. That is probably why some reputation engines (Gmail) don't stop there and look at the domain and other markers, too. Even SpamAssassin helps me block some of that kind of stuff based on Spamhaus DBL listings and content matching. -- Al Iverson / Deliverability blogging at www.spamresource.com Subscribe to the weekly newsletter at wombatmail.com/sr.cgi DNS Tools at xnnd.com / (312) 725-0130 / Chicago (Central Time) _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
