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.

I need to create an outlook PST file that I can have emails in with attachments. I will then send the PST file via email to test my system's Data Loss Prevention software. How do I create and load an ...

Microsoft Outlook has features to make emailing easier and faster. However, several people have reported some troubles when using it. If you find it difficult accessing your personal data file, you ...

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