I'm using notmuch message mode in emacs and I'm trying to send a message using msmtp. When I try to send a mail from within emacs it suddenly opens my default system email client, Evolution, and creates the new mail in that, complete with the text that I'd just entered into emacs-notmuch. I want it to just send the mail from within emacs.
I know this isn't a problem with msmtp because I can send emails via msmtp from the command line. And when I check my msmtp logs, the attempts to send from emacs aren't there. It isn't getting that far.
I wonder if this is a permissions issue of some kind, because in /usr/bin, msmtp shows up with a GID bit set. I am new to GID settings but it seems to be the only file that has it.
Can anyone point me in the right direction?
Here is the relevant bit of my emacs config:
(setq send-mail-function 'sendmail-send-it