$SSFT SonaVault uses stub technology without any client side component (plugin) installation to reduce the size of the Microsoft Exchange Server. In this process, message contents including attachments are removed from the email and a pointer namely stub is created in the email body which has a small footprint compared to the actual message size. This is transparent to the end-user who access emails through Outlook in the usual fashion. Stubbed emails when replied or forwarded, retrieve contents from the SonaVault Store instead of the Microsoft Exchange Server, seamlessly to the end-user.