Since I started using signed (and sometimes encrypted) mail with PGP/MIME, I've heard about messages being marked as spam, making the communication less reliable. I found that this wasn't the case if I wrote the email outside of mutt, signed it with gpg --armor and pasted the result into mutt. Additionally, I also consider the armor to be more portable. After many Duck Duck Go queries, I've been unable to find the answer. How can I make mutt use ASCII-armor instead of .*/MIME?
Here's the relevant part of my muttrc (i. e. everything that starts with pgp or crypt):
set pgp_autosign = yes
set pgp_replyencrypt = yes
set pgp_self_encrypt = yes
set pgp_sign_as = ...
set pgp_self_encrypt_as = ...
set pgp_timeout = 120
set crypt_opportunistic_encrypt = yes
