Microsoft is investigating issues with Outlook and Microsoft 365 after users report login failures and missing emails, ...

Microsoft is investigating several issues causing email synchronization and connection problems when using the classic ...

New Outlook fails to open Excel attachments with non-ASCII characters in filenames, and shows an error. Microsoft recommends using Outlook on the web or downloading ...

Microsoft is investigating classic Outlook issues causing Gmail and Yahoo sync failures and server errors when creating ...

Microsoft is investigating a known issue that causes the classic Outlook email client to crash upon launch, which can only be resolved via Exchange Online support. According to a recently published ...

Several Outlook users, on different forums, have reported encountering the error “OST file cannot be opened,” when trying to open the application or sending ...