Re:Tell HN: Enigmail 2.0 to automatically encrypt e-mails
by vx17h on Saturday October 29, 2016 @07:57PM
(#12827225)
Messages from or to a contact can also show red, I forgot to mention, if the user decides that the key pair used by that contact is not trustworthy. That can make sense if you see from the contents of a message (and subsequently perhaps by a phone call, adding evidence to that) that someone's in between or the key pair in place is not really belonging to the contact, but made up.
Cf. the documentation for screenshots how this looks (nowadays): https://prettyeasyprivacy.com/docs