Hi- I've only seen this issue recently (and I realize it's not mutt-specific) but that's where I see it and I know there are many on the list who have this working well.
On many emails with PGP signatures, attempting to view them with mutt from the index I get the message 'Invoking PGP..." for sometimes up to a minute or more (like it's hanging) and then the message body will display and the PGP portion of the header will read something like: [-- PGP output follows (current time: Thu 16 Jul 2020 10:07:19 AM EDT) --] gpg: Signature made Tue 14 Jul 2020 05:27:00 PM EDT gpg: using DSA key 28061C079B06D9752C2445CE8F1F244064FA7AA7 gpg: requesting key 8F1F244064FA7AA7 from hkp server pgp.mit.edu gpg: Can't check signature: No public key [-- End of PGP output --] Do I need to change the server(s) in my gpg.conf file and/or the method by which the key is attempting to be retreived? Thank you! -- Cheers, Trey ---- No lake so still but that it has its wave; No circle so perfect but that it has a blur. I would change things for you if I could; As I can't, you must take them as they are. --Han fei Tzu Linux saturn 5.7.7-arch1-1 x86_64 10:51:36 up 4 days, 3:14, 1 user, load average: 0.79, 0.44, 0.46