Microsoft SNDS and JMRP expose per-IP and junk-report data
What do Microsoft SNDS and JMRP actually provide for email senders?
Global · Microsoft
In one sentence
Microsoft SNDS/JMRP show Outlook IP health and junk reports — they diagnose; they do not auto-fix delivery.
Emailrules interpretation
Smart Network Data Services (SNDS) and Junk Mail Reporting Program (JMRP) let you see how Outlook views your IPs and when users junk you. Dedicated-IP senders should enroll. Shared-IP senders usually need the to own or share that data. Reading the charts without fixing auth, complaints, or list quality changes nothing.
Why it matters. Outlook is huge B2B and consumer. Flying blind without SNDS is optional ignorance for programs.
Dotted words open definitions. See how email actually works.
What to do
Your move — not a lecture
Part platform, part you
The platform covers the mechanical bit. The judgement is still yours.
Some enroll shared infrastructure and suppress on junk signals. Confirm in writing for your account.
Your part: IP ownership map, requesting access for , and acting on junk spikes.
What to do first
Build a one-row-per-sending-IP sheet: owner, shared/dedicated, SNDS access, JMRP destination, suppression owner. Empty access on is the gap.
You can skip this if: You send no mail to Outlook.com consumer domains.
Who this applies to
Anyone sending material volume to Outlook.com, Hotmail or Live, especially on .
Checklist
- 01Do not treat SNDS enrollment as a bulk-sender compliance checkbox like .
- 02Verify current portal terms rather than quoting old "free" support articles.
- 03Wire junk reports into suppression with the same seriousness as unsubscribes.
- 04Combine with Microsoft's authentication requirements.
That’s enough to act. The exact wording, the enforcement record and the primary source sit under Proof & sources, for counsel, bosses, or AI tools that need a citation. Not legal advice.
Proof
Exact position, enforcement, sources
For records and people who will check you. Skip if Monday’s move is already clear.
Source fact
Microsoft's Smart Network Data Services (SNDS) and Junk Email Reporting Program (JMRP) give visibility into Outlook.com and user junk reports for enrolled sending IPs. Enrollment is a monitoring action, not a substitute for authentication requirements. is still reputation-based. Whether JMRP is free, and what each auto-does with reports, must be verified in the current portal and ESP docs—do not copy outdated "always free" folklore.
What happens if you do not
No fine for skipping SNDS. The cost is flying blind on Outlook while competitors read the dashboard.
Source
- Microsoft, Outlook.com Smart Network Data ServicesPublished 6 Jul 2026Read primary source
History of this page
- Added as monitoring guidance, not a sending mandate.
Related
Take this with you
GET https://emailrules.today/rules/microsoft-snds-and-jmrp-expose-ip-and-junk-data?format=json
Same URL, same answer, every field including the ones behind the Proof tab. An Accept: application/json header on the plain URL does the same thing. All the endpoints.