Microsoft Exchange Online outage causes email delays, failures

Microsoft is working to address a widespread service issue affecting the mail flow pipeline for Exchange Online customers across North America and Germany.

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https://www.bleepingcomputer.com/news/microsoft/microsoft-exchange-online-outage-causes-email-delays-failures/

Curated Jun 02, 2026 by Aidan Duffy, Threat intelligence editor, AHackaday./Methodology/Sources verified.

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