Yhn ScienceSpace Policy first seen 2 d ago, last 52 min ago, peak #2
Outlook.com now rejecting email from domains without DMARC
Original: Outlook.com is rejecting email from domains without DMARC
Microsoft's Outlook.com has begun rejecting incoming email from domains that lack DMARC records, a change flagged and widely discussed by email administrators. The move pushes senders to adopt authentication standards like SPF, DKIM and DMARC, which help prevent spoofing and phishing. Admins are debating whether the stricter policy improves security or unfairly blocks legitimate small domains that never set up DMARC.
Why now: Microsoft quietly tightening email authentication requirements is disrupting senders and sparking debate among administrators.
Rank over time, top of the chart is #1. 101 snapshots from 2 d ago to 52 min ago.
Evidence
- Outlook.com is rejecting email from domains without DMARC · xmddmx · 548
API: https://socialmediatrends-api.osmike.com/v1/trends/5459391