we want to have the ability to encrypt outgoing emails on an ad-hoc basis, this is for when we want to send sensitive info between our work sites via email like passwords, currently we may call someone instead.
I understand you have to purchase a digital ID and certificate to "sign and encrypt" emails through outlook 2010? (we don’t use exchange server though - we use SmarterMail server). Can you encrypt without buying a cert? or are there any good plugins for email encryption anyone has experience of? we mostly use Windows 7 64bit and MS Outlook 2010.