Why don't you use email encryption?
iuguy: My business does. Anything commercially confidential is encrypted in transit and at rest on anything portable (file encryption isn't currently set up on the servers but will be in the next refresh).FWIW the way to use it successfully is to use it to get people to think about the sensitivity of the data (as in 'should I send this unencrypted?') as opposed to using it for everything. People that gripe and moan about it at work tend not to need it and are generally less exposed to it. Those that need it understand why.