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Microsoft Defender for Office 365 Blog
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Strengthening Email Ecosystem: Outlook’s New Requirements for High‐Volume Senders

Puneeth's avatar
Puneeth
Icon for Microsoft rankMicrosoft
Apr 02, 2025

This applies to Outlook.com - our consumer service, which is supporting hotmail.com live.com and outlook.com consumer domain addresses.

April 29th Update - Changes have been made to the action take on messages that do not meet requirements, please see details below. Introduction In an era where email remains one of the most widel...
Updated Apr 30, 2025
Version 4.0
awareness & training
email protection basics
freddieleeman's avatar
freddieleeman
Brass Contributor
Apr 21, 2025

PuneethDMARC defines two types of reports: aggregate reports and failure reports. The term 'forensic reports' is incorrect and should not be used. To encourage adoption and reduce unnecessary confusion, it's important to use accurate terminology.