Definition
Microsoft SNDS provides detailed data about how your IP addresses are treated by Outlook.com and Hotmail. It shows traffic volume, complaint rates, spam filter results, and recipient engagement signals. It is essential for any sender with a significant Outlook.com audience.
Key Metrics
- Traffic volume: Number of emails accepted, rejected, or blocked
- Complaint rate: Spam complaints per million messages sent
- Spam filter result: Percentage of mail placed in the inbox vs junk folder
- Recipient activity: Opens and clicks as reported by Microsoft
- Authentication status: SPF and DKIM pass rates
Setup
Go to snds.microsoft.com and register your sending IP addresses. Microsoft sends a confirmation email to the postmaster or abuse address for your domain. Once confirmed, data is available within 24-48 hours for IPs sending at least 100 messages per day to Outlook.com.
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