19 Jul, 2025

Microsoft: DNS issue blocks delivery of Exchange Online OTP codes

Microsoft is working to fix a DNS misconfiguration that is causing one-time passcode (OTP) message delivery failures in Exchange Online for some users. Recipients may receive a single-use access code via a separate email to open an encrypted message in Gmail, Yahoo, or other email clients without a Microsoft 365 subscription. This OTP message allows them to view […]

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