When the option "Automatically encrypt E-mail whenever possible" is selected in Configure KMail... --> Security --> Composing, KMail never encrypts a message to a recipient for whome you have a trusted public key, whether the recipient is manually typed into the To: field, selected from the Select Contacts dialogue or automatically populated through the Reply command. Reproducible: Always
I read code and it's never used in kmail Will fix it soon
Git commit f9ee4db74e75b11cb989cc2992aa5019b7556a91 by Montel Laurent. Committed on 29/08/2012 at 13:59. Pushed by mlaurent into branch 'KDE/4.9'. Fix Bug 305346 - KMail never automatically encrypts E-mail config was not used FIXED-IN: 4.9.1 M +9 -9 kmail/configuredialog.cpp M +0 -11 kmail/kmail.kcfg.cmake M +1 -63 kmail/kmcomposewin.cpp M +0 -11 kmail/kmcomposewin.h M +75 -15 messagecomposer/composerviewbase.cpp M +12 -0 messagecomposer/composerviewbase.h M +11 -0 messagecomposer/messagecomposer.kcfg.cmake http://commits.kde.org/kdepim/f9ee4db74e75b11cb989cc2992aa5019b7556a91