https://www.circleid.com/blogs/ Postings from on CircleID en Copyright 2026, unless where otherwise noted. 2026-04-30T19:14:00+00:00 https://circleid.com/posts20121013_a_simpler_approach_to_an_email_deliverability_metric https://circleid.com/posts20121013_a_simpler_approach_to_an_email_deliverability_metric reputation of the sender, which is a measure of that sender behavior over time -- and the reactions of the recipients to his messages. More...]]> 2026-04-30T12:14:00-07:00