How is it 2020 and the only acceptable mail client is (neo)mutt?
Runners up:
Mailpile -- too unstable and the single developer (although pretty cool) is definitely not enough.
Gmail web interface -- no PGP support and, well, you are not really running it, are you?
QOTO: Question Others to Teach Ourselves An inclusive, Academic Freedom, instance All cultures welcome. Hate speech and harassment strictly forbidden.