August 16, 2024 at 06:37PM
Microsoft has provided a workaround for a known issue where classic Outlook crashes for Microsoft 365 users. The issue arises from corrupted mailbox client and server rules, impacting Office 365 accounts and cannot be resolved through previous build reversion or Outlook profile creation. A temporary fix requires manual removal of email rules.
After reviewing the meeting notes, the key takeaways are:
– Microsoft has identified a known issue affecting Microsoft 365 customers, causing classic Outlook to crash after opening or when starting up in Safe mode.
– Impacted users can confirm if they’re affected by checking for Event 1000 or Event 1001 crashes in the Windows Event Viewer Application Log with 0xc0000005 exception codes linked to the faulting module ucrtbase.dll.
– The crashes impact only Office 365 accounts and cannot be solved by reverting to the previous build, creating a new Outlook profile, or even after a Windows clean install.
– The issue is linked to Microsoft 365 email accounts and corrupted mailbox client and server rules.
– Microsoft provides a temporary workaround requiring classic Outlook users to manually delete all email rules linked to their accounts.
– Redmond also shared workarounds for issues blocking Microsoft 365 customers from signing in or adding Gmail accounts in classic Outlook, as well as for an issue causing Microsoft 365 apps like Outlook, Word, and OneNote to crash while typing or spell-checking a text.
If you need further information or assistance, please feel free to ask.