Users may be able to leverage those protocols as an alternative means to access email and service features while we remediate this problem.Ĭurrent status: Our initial review of the available data indicates that recently deployed updates are the likely source of the problem. More info: Our analysis indicates that Outlook on the web and mobile clients are unaffected. User Impact: Users may experience crashes or may be unable to access Exchange Online via Outlook. Title: Users experiencing Outlook connection issues and crashes In an incident status message in the Microsoft 365 Admin Center titled 'EX218604: Users experiencing Outlook connection issues and crashes', Microsoft suggests users use web and mobile clients until the issue is resolved. The Microsoft 365 Status Twitter account has tweeted that this is being caused by new update and that they are investigating the issue. Faulting application name: OUTLOOK.EXE, version: 1.20266, time stamp: 0x5ef262eeįaulting module name: mso98win32client.dll, version: 0.0.0.0, time stamp: 0x5ef2aa2dįaulting application start time: 0x01d65ac9b0e13874įaulting application path: C:\Program Files (x86)\Microsoft Office\root\Office16\OUTLOOK.EXEįaulting module path: C:\Program Files (x86)\Common Files\Microsoft Shared\Office16\mso98win32client.dll