There are a couple of things that the average user should know.
- There is no such thing as email privacy.
- Most email travels through the internet from point to point in the clear
- So called legalese on the email footer about intended recipient and communication has not been tested in court and it not binding.
That said, if you have a private email server that you think is secure and you use it exclusively because you want secure email that is not to be seen by the prying eyes of big brother or even Google, Yahoo, Hotmail, Facebook or other… then you are sadly mistaken and misinformed.
Just because you have an uber secure email server does not mean that the recipient has the same. So then the real question becomes… Why not use Gmail yourself?