Microsoft is investigating an Exchange Online false positive issue causing emails containing images to be wrongly tagged as malicious and sent to quarantine. "Users' email messages containing images ...

Microsoft is enabling threshold-based auto-archiving by default in Exchange Online to prevent email flow issues caused by mailboxes filling up faster than expected. While users can also configure ...

Microsoft shares a temporary fix for Exchange Online apps affected by EWS retirement ahead of the permanent shutdown in April ...

Canada's new time zones cause problems with Outlook, Teams, and Exchange Online. Microsoft plans fixes starting November 4.

Microsoft has announced the public preview of its enhanced Message Trace feature in the Exchange admin center (EAC) for Exchange Online. A message trace provides visibility into emails sent to, from ...

Microsoft has announced a phased disablement plan for EWS in Exchange Online and Microsoft 365. Here's what you need to know.

Microsoft patches CVE-2026-96940, which lets authenticated attackers read other users' Exchange mailboxes within the same organization.

Microsoft will begin retiring Exchange Web Services in Exchange Online on October 1, 2026. Older applications and email clients that rely on EWS may gradually lose access to Microsoft 365 email, ...

Thousands of Microsoft enterprise customers reported problems accessing their email as they returned from the weekend, and on Monday afternoon, Microsoft acknowledged widespread problems affecting ...