mutt: pgp_autosign
I’m using the pgp-autosign-feature of mutt since ages. I usually disabled it in the pgp-menu (via pressing ‘p+f’) when writing with users of Microsoft Outlook Express (AKA OjE). Now I improved my mutt(-ng) setup so I don’t lose the autosign-feature but don’t have to disable it manually when mailing with OjE-users:
message-hook ~A "set pgp_autosign" message-hook "~h 'X-Mailer: Microsoft Outlook Express'" "set nopgp_autosign"
Works wonderful. :-)