If you are an Outlook user and not able to access your OST files and you suspect that the Exchange Server might be corrupted, then it is better to go for conversion of OST to PST. Once the connection is lost between the Exchange Server and Outlook, then you would not able to read the emails in offline mode but there is a way that you can use the orphaned account in an easy way. To avoid these kind situations, it's better to be updated with the latest software that Convert OST to PST files and recover all the data that was not accessible. It is professional and competent email repair tool that recovers and repair the damaged OST files for the Outlook users. After the scan of the corrupted OST file you will be able to read the mails on offline mode.