If you open MS Outlook and see an error message, Outlook is using an old copy of your Outlook data file (.ost), then use these fixes.

Microsoft is looking into a newly identified issue in classic Outlook that prevents users from opening certain encrypted ...

Microsoft has confirmed a known issue that prevents recipients from opening encrypted emails in classic Outlook.

Users can freely swap back to Classic Outlook by installing it and disabling the modern layout. If you can't find the toggle to switch back, open the "Help" tab and select "Go to Classic Outlook" from ...

If Share Contacts is not working, missing, or grayed out in MS Outlook, ask the owner to give you permission, delete Outlook ...

Microsoft’s new Outlook app — labeled “Outlook (new)” as opposed to “Outlook (classic)” — normally saves your emails online, so you cannot access them without an internet connection. However, it’s now ...

Microsoft Outlook is a popular email client to manage personal and professional information. When you configure a POP/POP3 email account in Microsoft Outlook, the client downloads and stores all the ...