Enable/Disable GPGMail 2 Sign by default

After Installation of the GPGTools (including GPGMail 2) the mail app tries to sign all outgoing mail by default. Unfortunately this can not be configured in the settings. But there are hidden settings.

To disable sign by default (one line!):

defaults write ~/Library/Preferences/org.gpgtools.gpgmail SignNewEmailsByDefault -bool NO

To enable sign by default (one line!):

defaults write ~/Library/Preferences/org.gpgtools.gpgmail SignNewEmailsByDefault -bool YES

For the complete list of hidden GPGMail 2 settings see here: http://support.gpgtools.org/kb/faq-gpgmail/gpgmail-2-hidden-settings