OST Mail Retrieval to PST - Version 3.3 OST Mail Retrieval to PST software easily restore deleted email from OST file because OST files keep recover of every emails on Exchange Server so you want to restore it then applies this software to access corrupt OST file easily and save as PST file format. Sometimes Exchange server down that time email store as OST file on Offline Exchange Server, everyone know about that OST data cannot open in Outlook, with the help of Transfer OST Email to PST software open corrupt or recovered OST as PST file format. OST data corrupt due to following reason like Virus Attacks, Server Down, Sever database corruption, Suddenly Shutdown the System, Hardware and Software issue, User account deleted accidentally, sometimes OST files cannot synchronized with Exchange Server etc. OST file create using Microsoft Exchange Server 2010, 2007, 2003, 2000, 5.5 and 5.0. Transfer OST File to PST software recovers corrupt email from OST data and converts to PST, EML and MSG of MS Outlook 2010, 2007, 2003, 2002, 2000, 98 and 97. You want to demonstrate and analyze the process then download Demo Edition of