Split PST for Mac is a very robust & powerful tool that helps you split large Outlook PST files into smaller files for MAC as per requirement.
Salient features:
Fastest and Efficient for this process
Splits PST files by Size, Date, Email ID, and Folders
Splits PST files into smaller ones and prevents corruption
Preserves the structure of original PST files after splitting
Supports MS Outlook 2016, 2013, 2010, 2007 & 2003
For more info visit:
https://www.toolscrunch.com/mac-split-pst.html