#2994: Wrong parameter micalg for S/MIME with mutt 1.5.17 and gpgme Since changeset 5166:e6f958b093b6 (fix for #2901) the micalg parameter is always pgp-<algo> for both pgp and s/mime. Since this patch s/mime signed messages aren't checked correctly by Thunderbird. If one removes the pgp- part, thunderbird checks the mail correctly. -- Ticket URL: <http://dev.mutt.org/trac/ticket/2994>