Microsoft Exchange Online recovers after ~19-hour outage, traffic spikes 19% above normal

kingslyj · x · 2026-11-13

Doug Madory of Kentik reports Microsoft's Exchange Online recovered after roughly 19 hours running about 85% below expected traffic, with recovery starting at 6:20 AM ET. By 8:25 AM ET traffic was 19% above expected as queued mail and mailbox syncs caught up.

Related event: Microsoft hit by global outage as Outlook, Teams and Copilot go down(59 posts)→

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