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Outlook.com Reportedly Rejecting Email From Domains Lacking DMARC

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A blog post from MailRoute reports that Outlook.com is rejecting messages from domains that do not have DMARC configured. The behavior is described as occurring quietly, without prominent notice to senders. DMARC is an email authentication standard that helps verify a sender's identity and guards against spoofing. The item was shared on Hacker News, where it drew modest attention with 20 points and 12 comments. The details available here come from a secondary source and the linked article, so the scope of the change is not independently confirmed.

Read the full story at Hacker News

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