This limit was exhausted in a few months’ time, especially with large attachments. This came with a file size limitation of 2GB. The Outlook versions that came before Outlook 2002 used a data file format called ANSI.Why does an OST file becomes oversized and what is the immediate solution to it? As such, users need to devise strategies to overcome this problem and gain access to their valuable mailbox data. File corruption can turn the data stored in such OST files inaccessible. One of the key issues with OST files is that they may get corrupt if their size grows beyond a certain limit. Once connectivity is restored, all changes made to the mailboxes are synchronized with the online accountsĭespite being a highly efficient email client, Outlook often faces issues because of problems with OST files.
#WHAT IS CACHED EXCHANGE MODE OUTLOOK 2010 OFFLINE#
OST files enable the users to work on their mailboxes in offline mode, even if the connectivity to Exchange Server is temporarily unavailable. This offline replica of the Exchange account data is known as Offline Storage Table file or OST file. When Outlook is used with Cached Mode On, all the data stored within the Microsoft Exchange mail account is saved on the local system for offline access. So how can users extract their valuable data stored inside inaccessible OST files through Outlook? Let us try to find out. In such a case, it becomes difficult to access it through Outlook to view OST file data. Summary: Outlook OST file becomes prone to corruption if it exceeds its prescribed size limit.