I want to suggest you a third party tool that will help you to Split large Outlook PST file into smaller parts. With the help of this PST Splitter tool you can Split your large size of Outlook PST file into smaller parts without any technical expertise. This tool provides multiple options to split PST files such as Split by A straightforward program to split by size, year & folder PST is one of the most widely used platforms for MS Outlook for Windows.

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