Showing posts with the label jmrp

SNDS and JMRP in transition

Microsoft's sender reputation data portal ( Smart Network Data Services , or SNDS) and their ISP feedback loop mechanism (Junk Mail Reporting Program, or JMRP), are undergoing a transition. The SNDS website relaunched in June, 2026, with updated access controls and some changes to what data is shared and how it is shared. I'll likely cover that in more detail at some point in the fu…
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DELIVTERMS: JMRP

It's time for another entry in the DELIVTERMS dictionary! Today, let's define JMRP. JMRP is the " Junk Mail Reporting Program ," the mechanism by which email sending platforms and internet service providers can receive complaints back whenever an Outlook.com …

Microsoft JMRP (FBL) woes starting August 16th

Starting on August 16th, Microsoft seems to have stopped sending feedback loop reports. Microsoft's FBL is called the "JMRP" (Junk Mail Reporting Program) and multiple folks are indicating that the email feed of complaint reports that this entails seems to have dr…