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Outlook.com bounces legit emails as authentication crackdown goes sideways

IT·技术 · 2026-11-10 16:24

Microsoft's stricter SPF and DMARC enforcement on Outlook.com has backfired, causing the service to incorrectly reject legitimate emails. This authentication crackdown is disrupting normal communication for users by bouncing valid messages due to implementation errors.

Source: www.theregister.com


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