Exchange Online outage EX1331830 has blocked email delivery across North America, Asia-Pacific, and Europe since June 2, 2026 ...

A Microsoft 365 outage is preventing Exchange Online users from sending and receiving emails, with messages being stuck in transit and not reaching the recipients' inboxes. "We're investigating a ...

Beware this highly sophisticated Microsoft 365 attack. Update, March 15, 2025: This story, originally published March 13, has been updated with further technical detail regarding the Microsoft 365 ...

As organizations increasingly rely on cloud-based services like Microsoft 365 Exchange for daily communication, a common and potentially dangerous assumption has emerged: that storing data in the ...

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 outage at Microsoft impacted thousands of online users on Monday as they attempted to use its Microsoft 365 service for emails, calendars and other features. Microsoft 365 confirmed early Monday it ...

Back in 2022, Microsoft announced the retirement of Basic Authentication as it was moving to modern OAuth 2.0 token-based authentication. The reason was simple, to move away from such simple ...

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 ...

Microsoft said today that the Exchange Web Services (EWS) API for Exchange Online and Office 365 will be retired in approximately three years. EWS is a cross-platform API that can be used to develop ...

In today’s digital landscape, email encryption has become a critical component of safeguarding sensitive information and maintaining secure communication channels. Microsoft 365 offers a comprehensive ...