The Microsoft Outlook mail client stores such data as: mail messages, tasks, contacts, meetings, notes and logs in files with the .pst extension. Recovering data with Recovery ToolBox for Outlook comes down to:

reading the corrupted pst file
identifying and recovering data from this pst file
saving the recovered data to one or several new .pst files

The maximum size of each new file created by Recovery ToolBox for Outlook can be up to 1GB. If the size of the source file exceeds 1GB, the program will save the recovered data to several files. The size of each created file will not exceed 1GB.

Home Page: http://www.recoverytoolbox.com/outlook.html