Microsoft has launched High Volume Email for Exchange Online in public preview, with free access until May 2026 for organizations sending high-volume email.

Microsoft is investigating ongoing Microsoft 365 issues preventing some Exchange Online customers from accessing their mailboxes. "We've identified an issue affecting Exchange Online connectivity for ...

Microsoft 365 updates bring clearer OneDrive sync errors, default Copilot edits in Word, and better Teams recap controls.

Public folders in Exchange Server are used to collaborate and share information among the members of a workgroup or the entire organization. These folders help users to share mailbox items and ...

An ongoing outage affects multiple Microsoft 365 services, with customers worldwide reporting delays, sign-in failures, and issues accessing their accounts. Starting with Monday, June 20, at 11:00 PM ...

Microsoft has laid out a timeline for the disablement and shutdown of Exchange Web Services (EWS) in Microsoft 365 and Exchange Online.… October 1, 2026, is when EWS will be disabled by default, ...

The Radicati Group’s latest study, “Microsoft 365, Exchange Server and Outlook Market Analysis, 2023 - 2027” provides an in-depth analysis of the penetration of Microsoft 365, Hosted Exchange, ...

Microsoft confirms Exchange Online and Teams messages were mistakenly quarantined due to a phishing detection bug (EX1227432).

The bigger they are, the harder they fall, a sentiment all too familiar to Microsoft 365 users this morning, as the popular business tool is experiencing an outage that his impacting its Teams and ...

Offline Storage Table (OST) file is the local cache that Outlook creates when you add or sign in using an IMAP, Microsoft 365, Exchange, or Outlook.com email account. It is a database format used by ...