Symantec Email Security.cloud filters unwanted messages and protects users from targeted attacks. The service has self-
learning capabilities and Symantec intelligence to deliver highly effective and accurate email security. Encryption and data loss
prevention help you control sensitive data. It supports Microsoft Office 365, Google Apps, on premises or hosted Microsoft
Exchange, and other mailbox services, delivering always-on, inbound and outbound messaging security. It is designed…
Barracuda's ESS is the premier product, it boasts outbound email encryption as an included service as well as all of the security features of Symantec Email Security.cloud. Sophos is on the same level as SES.c but is not quite as feature rich.
If you don't want to have any spam or malware in your mailbox, Symantec Email Security.cloud is the solution to choose. Also, if you need to have some security features, like DLP, it has them embedded!
We have also been using reporting a lot to see how many emails have been sent, where they delivered, and so on.
Outbound encryption could be improved to allow for advanced connections to other organizations' PKI keyservers.
The user interface could be a little more friendly, finding advanced features sometimes takes a little more time with hunting and clicking to get to the correct page.
Barracuda's ESS is the premier product, it boasts outbound email encryption as an included service as well as all of the security features of Symantec Email Security.cloud. Sophos is on the same level as SES.c but is not quite as feature rich.