https://www.circleid.com/blogs/ Postings from on CircleID en Copyright 2026, unless where otherwise noted. 2026-04-06T20:04:00+00:00 https://circleid.com/posts20151128_officially_compromised_privacy https://circleid.com/posts20151128_officially_compromised_privacy More...]]> 2026-04-06T13:04:00-07:00 https://circleid.com/postssearching_under_lampposts_with_dkim https://circleid.com/postssearching_under_lampposts_with_dkim More...]]> 2026-04-06T13:04:00-07:00 https://circleid.com/posts20090422_thoughts_on_email_authentication_trust https://circleid.com/posts20090422_thoughts_on_email_authentication_trust A Few Thoughts on the Future of Email Authentication, should trigger thoughtfulness in the rest of us. Email abuse has been around a long time. Anti-abuse efforts have too. Yet global abuse traffic has grown into the 90+% range, with no hint of trending downward. The best we hear about current effectiveness is for last-hop filtering, if you have the money, staff and skills to apply to the problem... More...]]> 2026-04-06T13:04:00-07:00 https://circleid.com/postschallenges_in_anti_spam_efforts https://circleid.com/postschallenges_in_anti_spam_efforts current issue of the Internet Protocol Journal, of which I wrote one, that provide some useful background about this reality. Simply put, Internet mail needs to sustain spontaneous communications... More...]]> 2026-04-06T13:04:00-07:00