$SSFT The SonaVault Email Archiving software solution employs reliable safeguards including encryption to ensure that the email is tamper-proof without the possibility of being altered. Our secure archiving solution is achieved through encryption and hash calculations to determine the tampering of emails. SonaVault uses Microsoft’s Journaling mechanism to extract and archive messages. This ensures that every message which goes out and enters an Microsoft Exchange Archiving Server is archived even if the message is deleted by the user from his or her mailbox.