They have moved to a new Exchange Server within my organization. Now I have an old OST file with a connection to a new Exchange Server (> 200 MB). They made no backup of my old mailbox so I need to recover the data from the *.ost file. As far as I know there´s an internal id stored in the file that represents the mailbox that was used to create the ost file. Is there any chance to open the .ost file without having a connection (or even a profile) to the old mailbox?