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 confirms Exchange Online error misclassifying legitimate emails as phishing threats.

Microsoft is investigating an ongoing outage impacting Microsoft 365 services after customers have reported experiencing issues while trying to sign into, access, and receive emails on the outlook.com ...

Missing emails? Exchange Online is tagging legitimate messages as spam - here's what to do ...

Microsoft's Exchange team is warning Exchange Online users that many of its customers are being targeted by password spray attacks using its basic authentication. The warning comes as Microsoft begins ...

After widespread complaints of blocked or sluggish email services, company says it has identified the problem and the ‘issue is resolved.’ Microsoft said Monday an outage that hit its Exchange Online ...

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 ...

Microsoft is set to retire Exchange Web Services (EWS) on October 1, 2026, after which it will WS requests from non-Microsoft apps to Exchange Online. The change won't impact EWS in Exchange Server, ...

Microsoft recently began deploying HTTP/3 across Exchange Online front-door servers. Microsoft 365 customers can expect latency reductions of up to 67% when using services like Outlook. Windows Server ...

It's finally time for businesses running Exchange Online to switch from Basic Authentication to Modern Authentication before Microsoft disables the former on October 1, 2022, according to the US ...