Microsoft has been hit by a widespread outage, disrupting Outlook, Teams, Copilot and other Microsoft 365 services. Nearly 130,000 users reported problems accessing Outlook on outage tracker Downdetector, with many unable to send or receive emails or load their inboxes. Thousands also flagged issues with Teams and Copilot. Microsoft said it was investigating connectivity problems affecting Exchange Online mailboxes across the Americas, citing elevated infrastructure load and unexpectedly unavailable servers. The company is testing a fix to restore services.