The ISP also provides one or more email accounts. Home users usually use an Internet service provider (ISP) to connect to the Internet. This is the most common file in which information in Outlook is saved by home users or in small organizations. ost).Ī Personal Folders file (.pst) is an Outlook data file that stores your messages and other items on your computer. Introduction to Outlook Data Files (.pst and.
Outlook Data Files (.ost) are always copies of items that are saved on a mail server and do not have to be backed up like Outlook Data Files (.pst). This type of data file is also used for accounts that you set up with the Outlook Connector for (formerly Hotmail).
When you want to create archives or back up your Outlook folders and items on your computer, such as Exchange accounts, you must create and use additional.