Your Outlook Data File is composed of a file header, located at the beginning of the document, and the actual data that makes up your personal folders. Contained in the header is information about the ...

Offline storage table (OST) and personal storage table (PST) are two different Outlook data files used to store a copy of mailbox items on local storage. Outlook creates a PST file when you add a POP3 ...

Some users have reported that when they open MS Outlook, they receive an error message that Outlook is using an old copy of your Outlook data file (.ost). For some ...

If you cannot open Microsoft Outlook for some reason, it can make communicating with employees, clients or suppliers rather difficult in some cases. There are several reasons you may not be able to ...

If you are someone who has encountered the frustrating experience of lost mailbox data due to PST file corruption, you know how inconvenient and frustrating this can be. It can disrupt your workflow ...

While Gmail and Yahoo Mail continue to be mainstream email options, professionals and Windows fans will only give up Microsoft Outlook when you pry it from their cold, dead fingers. And that’s not a ...

Is your Outlook crashing when importing PST file? You are not the only one encountering this problem. This issue has been reported by many Outlook users. That’s why we have curated this guide. In this ...

Editor’s note on March 18, 2019: This Outlook article was first published in September 2013. Since then, we have added a video tutorial, updated steps in the Rebuild section, and updated the related ...

After some users with large Outlook 2007 Personal Folders (pst files) complained about the e-mail client running slowly, Microsoft released a patch last week that is said to improve the application's ...