TechBleepingComputerabout 5 hours ago
Microsoft fixes Exchange Online mailbox quarantine bug
1 min read
Microsoft is resolving an Exchange Online issue that has mistakenly quarantined customer mailboxes since July 19. The problem, tracked as EX1436407, stems from a recent infrastructure change causing excessive memory consumption and out-of-memory conditions. Cleanup of excess indexing data reached 72% completion by Wednesday evening, with mailboxes gradually being removed from quarantine.
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