India, Nov. 13 -- Tens of thousands of professional users and personal account holders experienced widespread connectivity disruptions and access failures across Microsoft Outlook and multiple core Microsoft 365 services, prompting an urgent technical response from corporate engineering teams.

The sudden service breakdown began hitting tracking platforms and administrative dashboards as users across North America and international regions reported frozen screens, authentication loops, and persistent loading errors when attempting to open Exchange Online mailboxes.

Downdetector registered a sharp surge exceeding 130,000 user-submitted incident logs within hours of the initial failure, reflecting deep operational friction for corporate wo...