SSE Symantec Backup Exec 2010 SSE Symantec Endpoint Protection 12.1 (August 2011) SSE+ Symantec Backup Exec 2010 STS Symantec Enterprise Vault 10.0 for Exchange SSE Symantec Backup Exec 2012 SSE Symantec Enterprise Vault 10 (March 2012) SSE+ Symantec Backup Exec 2012 SSE+ Symantec Enterprise Vault 10 (April 2012) SSE Symantec Messaging Gateway 10 SSE+ Symantec System Recovery 2013 SSE Symantec System Recovery 2013