Microsoft Outlook uses PST files to store the emails, contacts and other data to display them in the Outlook profiles of the users. PST file is the storage center of MS Outlook as it contains all the files, folders and related data that are dispatched to the users whenever they require them. That's why; sudden failure or minutest fault in the PST files may result in disturbing the whole email messaging system. Also, as the number of emails grows in Outlook the size of PST file considerably increases which may touch the peak level causing size limitation errors in Outlook.
In Outlook 2007 or earlier versions, it is recommended to use up to 2GB of memory which means a PST file can grow up to 2GB. Exceeding that size may eventually result in size limitation error and PST file may become inaccessible. As soon as the PST file becomes lost, the data and emails residing in it get completely inaccessible. Users might face terrific problems and unfamiliar error messages while running corrupt PST file. The performance of Outlook is also affected greatly with the increase in the size of PST file. Outlook 2007 may momentarily stop responding during typical operations. It happens when you read email messages or delete email messages. The symptoms are commonly noticeable during mail delivery or synchronization of emails. With the increase in store size these symptoms become more prominent.
