How to use the List-Unsubscribe email header for easier unsubscription request handling.
Tag Archives: Deliverability
DKIM and ADSP: State of deployment
Posted by Franck Martin on 2009/10/27
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Author Domain Signing Policy (ADSP) is a new specification which gives a policy hint on what to do when the DKIM verification fails. This post details rate of adoption and problems.