Sender ID: "Implementation Tips for the Sender ID Framework-Creating Your SPF Record" describes the benefits of authenticated e-mail and of Sender ID implementation to both senders and recipients.
E-mail is a vital element in today's internet society, enhancing communications, productivity and e-commerce. Unfortunately, spammers and online criminals exploit e-mail, creating security, privacy, and personal identity issues while threatening the brands of businesses worldwide. Left unchecked, these dangers threaten customer trust and online confidence, as well as the deliverability of legitimate e-mail.
To address this critical security issue, Microsoft has collaborated with other industry leaders, ISPs and organizations worldwide to develop the Sender ID Framework (SIDF). SIDF is an e-mail authentication protocol designed to be implemented at no cost and performance impact for all senders, independent of their e-mail architecture. Today, SIDF is the leading solution now embraced by over 8 million domains and helps to stem the tide of spam, e-mail spoofing, phishing and other online exploits. When e-mail-receiving networks include the SIDF Purported Responsible Address (PRA) or MAIL FROM check results with their existing anti-spam heuristics and messaging hygiene infrastructure, SIDF can help improve e-mail deliverability while reducing false positives and false negatives.