Yes, this is an efficient tool and therefore makes it possible to delete the duplicates from multiple PST.
Yes, you can erase the duplicates from all the items such as tasks, calendars, contacts, etc. along with emails.
No, this is a Windows based utility and therefore, cannot be accessed in Mac OS X.
Yes, with the help of this program, you can check the duplication within or across the folder with no difficulty.
Yes, the tool needs the installation of Microsoft Outlook for executing the process of deduplication.
No, there is no file size limitation associated with the software for removing the duplicates from PST.