What is Microsoft Smart Network Data Services (SNDS)?

Microsoft Smart Network Data Services (SNDS) is a free service Microsoft offers to senders that provides high-level insight on how subscribers rate the email they receive as well as the health of an IP address as viewed by the system. SNDS provides data based on actual email sent to subscribers.

The metrics include:

  • Spam complaints
  • SmartScreen filter results
  • Spam trap hits

SNDS data can help improve your understanding of how the filters and users rate your email.

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