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Outlook.com is rejecting email from domains without DMARC
Since November 5, Outlook.com and Hotmail have been bouncing mail from domains with no DMARC record, small senders included. What changed, and the one-record fix.
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Since November 5, Outlook.com and Hotmail have been bouncing mail from domains with no DMARC record, small senders included. What changed, and the one-record fix.