STS Symantec Enterprise Vault 10.0 for Exchange SSE Symantec Backup Exec 2012 SSE+ Symantec Enterprise Vault 10 (April 2012) STS Symantec Backup Exec 2012 SSE+ Symantec Enterprise Vault.cloud (March 2013) SSE Symantec Enterprise Vault.cloud (March 2013) SSE Symantec Enterprise Vault 11 SSE+ Symantec Enterprise Vault 11