Data Loss Protection

[Paulo Roncon]

Does anyone have any form of data loss protection working with mailscanner?
A simple feature could be: 
outbound mail: based on the analysis of the header the service could aply rules (quarantine, reject with notification, send mail in SSL, other) 
The basic ideia is to prevent that unauthorized content leaves the corporate and/or goes to the internet without encryption.
I think it could be a nice feature or even a new project.

Any coments?

Thanks
Paulo