
A Heads-Up on Microsoft, DMARC and Your Emails
Since 5 November 2026, Microsoft’s personal email services (Outlook.com, Hotmail, Live and MSN) have been rejecting emails from domains with no DMARC record, even when SPF and DKIM pass. The fix is to publish a DMARC policy (p=none is enough to start). Here’s how to check your domain and what to do next.











