A user may split their PST files because of the following reasons. These reasons include;
• An oversized Outlook PST file can slow down your system, crash your Outlook application, and corrupt your Outlook data files.
• Users refused to save data items to their PST file folder when the PST file was out of disk space or had limited disk space.
• The outlook was unable to save the data in the PST file when the Outlook data file reached its maximum size.
This application helps you to split PST by size, date, folder and year. It maintains integrity of data while dividing oversized Outlook data files. With this utility you are able to combine Outlook archive files without any data loss. It split Outlook data files with all emails, contacts, calendars, tasks and other items.
Read more :- https://www.osttopstapp.com/split-pst.html