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

Microsoft Outlook categorizes Outlook Data Files into two types: PST and OST files. PST files contain data stored in your personal folders, whereas OST files contain data downloaded off your Exchange ...

If MS Outlook freezes or crashes when attaching files on your Windows computer, these fixes will surely help you resolve 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 ...

Your Outlook PST file size and your weight have a lot in common; if you're not careful, both will increase precipitously. That's bad, of course, since Outlook can perform badly when it gets bloaty.

You can back up your Outlook contacts in a comma separated value file (CSV), or a PST file. PST files can also store emails, calendars and tasks. Even if you backed up your entire email account in a ...

Microsoft Outlook is set to get an update that will address the size limit that is currently in place when sharing files on the email service. In the future, instead of attachment limits, users will ...

Are you getting the most from Outlook 2016 and 2019 for Windows? Learn about the key features in Microsoft’s email and calendaring client. The pundits would have you believe that email is being ...