Microsoft Outlook and PST Files: Outlook is an email management application developed by Microsoft Corporation. Owing to its easy usage and useful emailing features, it is one of the most widely used emailing programs by individuals as well as professional users. The mailbox information of Outlook is saved in the Personal Storage Table (PST) files. PST is a major storage entity for MS Outlook. Most mailbox items (like emails, contacts, tasks, journals, etc) are saved in PST files.
Outlook 2003: PST File Size Issues in IMAP Account
Microsoft Outlook 2007 and Microsoft Outlook 2003 impose a larger file size limit and a different file format (Unicode) for its personal folders. Also termed as PSTs, these files can now store more messages as compared to earlier American National Standards Institute (ANSI) format files used in Microsoft Outlook 2002 and earlier. But contrary to popular belief, not all accounts in Microsoft Outlook 2003 use the standard Unicode file format. The Internet Message Access Protocol Version 4rev1 (IMAP4) accounts and HTTP accounts in Outlook 2003 still use ANSI PST files and thus are susceptible to same file size issues as in earlier versions. Consequently, Outlook 2003 users need more management techniques to keep their PST files in size. One o...