What is the difference between pst and ost

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And one of the most famous applications is MS Office suite. A first, it has been designed to work as an email client but due to its plethora of features like creating tasks, calendars, journals, note taking and even web browsing, it can also be used with Microsoft Exchange server and even with SharePoint server or even can be used to share multiple files or documents by multiple users in an organization. Being an email client MS Outlook stores all kinds of data like emails, attachments, calendars, journals, tasks, and so on.

These files make it possible for Outlook to be used even in offline mode and to sync automatically when connected to the internet. Each configured email account has its own PST file. You can use or access OST file with ease if you are offline or not even connected with the Exchange Server.

Also read: Popular Email Client Applications. Difference Between PST and OST MS Outlook creates an Outlook data file to store all the email messages and other mailbox data, such as: contacts, calendars, tasks, notes, appointments as well as attachments.