Whats Oversized OST File Problem?
Microsoft Outlook 2002 and lower versions limit the size of offline folder (OST) file to 2GB. When the file reaches or exceeds that limit, you will encounter one or more of the following errors: • Cannot open or load the OST file at all. • Cannot add any new data to the OST file. • Cannot synchronize the OST file with the Exchange server. • See various error messages during the synchronization process. This is called oversized OST file problem. Microsoft Outlook and Exchange have no built-in functions to rescue the oversized OST file. Microsoft only released several service packs so that when the OST file size approaches the 2GB limit, Outlook will show some error messages and stop accepting any new data. This mechanism, to a certain extent, can prevent the OST file from being oversized. But once the limit is reached, you can hardly do anything with the OST file, such as send/receive emails, make appointments, write notes, synchronization, etc., unless you remove bulk of data from the