Microsoft 365 outage: Outlook emails queued, not lost, Microsoft extends timeout to 48 hours
Microsoft 365 has been down for more than 16 hours, disrupting Outlook email service. To protect delayed messages, Microsoft has extended the email timeout window to 48 hours. Emails sent and received during the outage are mostly held in a queue rather than deleted. Once services recover, those messages are expected to arrive late, and possibly in bursts. The report also explains when users may need to resend emails.
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