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Exchange Online bug mistakenly quarantines user emails

Microsoft is investigating an Exchange Online bug causing anti-spam systems to mistakenly quarantine some users’ emails. According to a new incident report added to the Microsoft 365 Admin Center, the email issues started almost five hours ago, at 10:11 UTC.  While the company has yet to share what regions are impacted, this Exchange Online incident has been tagged as a critical service issue tracked under EX1038119 on the…