Threat actors are abusing misconfigured MX records and weak DMARC/SPF policies to make phishing emails look internal, bypassing filters and increasing credential theft risk.

While sending an email through the Outlook desktop app, if you see an error message saying Microsoft Outlook cannot sign or encrypt this message because there are no ...

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 ...