Question Encryption for emails

[Ihtshama]

One of my client asked me to provide him fully encrypted email service, though i believe that while having https, emails sent/recieved will be encrypted and security will not be breached. Is it true?

Having https is enough to make sure emails are not intercepted/or read by any authority? or do i have to install some other email service.

I am using email as provided by Plesk, with roundcube.

thank you.

 

[Ihtshama]

No one around to help pls?

 

[MarkM]

I actually found this quiet some time ago and have had it bookmarked as something that looked pretty cool. It may interest you;

NSA-proof your e-mail in 2 hours