As often happens during MAAWG, email companies are announcing new products. One of the interesting ones is the new Domain Assurance product from Return Path.
Domain Assurance […] first audit[s] a company’s email streams to be sure authentication has been properly implemented. Then, the company’s domains are added to a registry. Participating ISPs can check the registry and block any unauthenticated emails coming from the domains found there. Return Path provides on-going checks for authentication accuracy and alerts participating companies any time their brand is phished or spoofed.
While this type of authentication won’t solve phishing, it is a tool to help protect end users from malicious mail.