Microsoft published recently version 5.0 of Sender ID: "Implementation Tips for the Sender ID Framework—Creating Your SPF Record"
The print-ready brochure describes the benefits of authenticated e-mail and of Sender ID implementation to both senders and recipients.
- Sender ID: Sender ID Overview
- Sender ID: "Sender ID Framework Deployment Overview"
- Sender ID: "Sender Policy Framework: Authorizing Use of Domains in Mail From"
- Sender ID: "The Sender ID Framework: An Overview and Implementation Update"
- "Sender ID: Authenticating E-Mail" Specification (Draft)