As you may have been informed, gmail has this new feature which indicates whether an emailr was encrypted or not.
"In Gmail on your computer, you can check that a message you’ve received was sent over TLS by clicking the small down arrow at the top-left of the email and reading the message details.
If you see a red open padlock icon on a message you’ve received, or on one you're about to send, it means that the message may not be encrypted."
My problem is, that my sent and received emails have this indicator. I use ssl in case of all my sites and I use tls(Secured connection on port 587 using TLS) when I send my emails from gmail though my server.
What should I do in order to remove this red indicator? is it possible to force dovecot and postfix to use only tls? Would it solve the problem?