$SSFT A complete email archiving & eDiscovery solution utilizing SonaVault software powered by Microsoft SQL Server on Dell PowerEdge™ enterprise-class servers. Expand mailboxes and storage on-the-fly. All Dell-based email archiving & eDiscovery appliances comes a with Dell hardware warranty and Dell service. All SonaVault Email Archiving & eDiscovery Appliances comes with licensed copies of Windows 2008 professional and Microsoft SQL Server.