Microsoft is working to fix an Exchange Online service outage that intermittently prevents users from accessing their ...

The threat actor behind the SolarWinds attack – which was thought to have compromised around 18,000 customers using the company’s Orion software last year – is now targeting Microsoft mailbox owners ...

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 is the latest big name to adopt the Authenticated Received Chain (ARC) email protocol, and will feature it within Office 365. The announcement has drawn praise from industry insiders like ...

Microsoft 365 migrations are often judged by how quickly data moves. Mailboxes, documents, and collaboration tools usually ...

Microsoft first tweeted at 8:56 a.m. Pacific Wednesday about the issue. The company said it was resolved hours later. Some users of Microsoft Exchange Online are unable to access mailboxes through any ...

Outlook has two types of name objects: the Display name and the Name value. Display names are used for end-user identification on outgoing or incoming messages or emails. Name values, however, are ...

Microsoft added some Office 365 capabilities this month, including administrative tools for IT pros and a preview of Microsoft Graph reporting APIs. The Graph is Microsoft's search-powered service ...

If You don't have permission to share your calendar with a user or group in Microsoft 365, follow the solutions mentioned here to resolve the issue.