Microsoft just published results culminating from a two-year-long study on the effectiveness of Sender ID Framework e-mail authentication in helping counter deceptive e-mail.
Key results from the study:
- Every day, 20 million forged messages are detected by Sender ID-enabled domains.
- Reputable marketers that have adopted Sender ID have realized improved deliverability, with up to 85 percent fewer messages mistakenly marked as spam in Windows Live Hotmail.
- With spam increasing 40 percent in the past 12 months, spam in Hotmail users' inboxes has actually been reduced by 50 percent; Sender ID contributed 8 percent of that reduction.
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