When a PST file becomes too large, splitting it into smaller files can help improve Outlook performance, simplify backups, and make email migration easier. Manually moving emails between multiple PST files can be time-consuming, especially with large mailboxes.
For this, SysTools PST Splitter is a useful option. It can split large PST files based on size, date, year, folder, or email ID, while maintaining the folder structure and mailbox data. It’s particularly helpful when you need to break down oversized PST files into manageable parts without manually sorting thousands of emails.
