I need to archive and then recombine some email data files for a client. I am noticing a large size difference between the current OST files they are using and the PST files I create if I do an export from those accounts. (eg 5G for OST and 2.4G for resulting PST). Is this large a size difference something to be concerned about? The client has made a complete mess of the data by somehow partially importing other data files and using more than one account in the same profile. I am trying to sort this out and need to export piecemeal from all involved datafiles to try and recombine thiings into one file for archiving. I am concerned that I may be missing something if I just assume the small PST file mirrors the parent OST file given the size difference.
Sadly, a PST or OST file doesn't reflect the real data well. If I fill either files with 5GB of data, then delete 4GB, the files is still 5GB. You have to either compact it, or inside Outlook, see the folder size properties. Also look here: http://www.reddit.com/r/Outlook/comments/29umn0/deleted_all_my_outlook_pst_files_i_cant_recover/ http://social.technet.microsoft.com...y-outlook-data?forum=exchangesvrclientslegacy http://www.erepairoutlook.com/ - eRepair Outlook.