On as regards backup i don't know,but restore this program will do-
ost 2 pst converter,repair *.ost files and convert it to *.pst files, that can be easily opened by Microsoft Outlook or any other compatible email client,can convert ost 2 pst and recover all of your contacts, emails, tasks and calendars, that were lost,will convert ost 2 pst and recover all your contacts, emails, tasks and calendars,can convert *.ost file into a *.pst file, that can be opened by any email client,extract a list of different files in *.eml, *.vcf and *.txt format, that will be placed to one common folder,can recover only critical data from your mailbox, it will save a lot of free space in your inbox.