David Bremner <david@tethera.net> writes: > Allan Streib <astreib@indiana.edu> writes: > >> Notmuch/0.20.2 (http://notmuchmail.org) Emacs/24.4.1 >> >> Replying to a message in a deeply nested thread can trigger a complaint: >> >> sendmail: command failed: 550 5.7.1 Delivery not authorized, message refused: Message is not RFC 2822 compliant >> >> The problem is a References header that is too long/not wrapped. >> > > Hi Allan; > > Thanks for the report. I can see how notmuch-reply would generate a > long references header in that situation. We rely on message-mode (part > of Gnus) to actually send the message, and it isn't clear to me yet if > message-mode (or some function it invokes) normally folds long headers. I have reported this as an emacs bug. http://debbugs.gnu.org/cgi/bugreport.cgi?bug=21608