Microsoft is addressing an Exchange Online bug causing Outlook mobile users to face crashes and 12-hour email sync delays.

Microsoft is working to resolve an Exchange Online issue causing email access problems for Outlook mobile users who use Hybrid Modern Authentication (HMA).

Microsoft has simplified the administration of Exchange Online licensing when used with Azure Active Directory, per a Friday announcement.

Microsoft has urged customers to be on high alert for an “improper authentication bug”, which could allow threat actors with admin access to an on-prem Exchange Server to escalate privileges into the ...

Microsoft said Monday an outage that hit its Exchange Online and Outlook email services has been resolved. The Redmond, Washington-based tech giant confirmed earlier today that it was probing an ...

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.

Microsoft has this week reminded Microsoft Exchange Online users that it is basic authentication login system will end on October 1, 2022. After this date any connection to Exchange Online that ...

On October 1, Microsoft will start switching off Basic Auth for Exchange Online tenants worldwide. That means it's time to move, says CISA.

Microsoft warns of password attacks against Exchange Online, here's what you need to do SMTP and IMAP are by far the most common protocols abused by password-spraying attacks.

Microsoft is phasing out the use of Remote PowerShell for Exchange Online, and will block its use next year.

Microsoft was not releasing feature updates for Exchange Web Services in Exchange Online and now says it will block EWS requests from non-Microsoft apps to Exchange Online starting Oct. 1, 2026.

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 ...