Hi all, just released muacrypt-0.9.0 with documented mutt/autocrypt integration:
https://muacrypt.readthedocs.io/mutt.html FWIW I successfully used it to scan 60K messages in three of my accounts and am using it in my own mail setup now for both incoming and outgoing mail. The mutt/muacrypt combo supports key gossiping and automatically, transparently encrypts otherwise-cleartext mail if recommended by Autocrypt's recommendation algorithm. Manual key selection or other decisions about keys are not neccessary. If a mail is already encrypted muacrypt leaves it alone. Very happy about any trials, comments or PRs you might do or have! best, holger