Does GoodSync synchronize different versions of Outlook data file and others?
GoodSync synchronizes whole files. It does not read the file to interpret what’s inside the file. So GoodSync can synchronize file Outlook.pst as a whole but it cannot sync individual contacts or emails stored inside this file, because it does not know what’s inside the file. GoodSync cannot synchronize different versions of Outlook PST file for the same reason – it does not interpret contents of the file.