I have used Pine and then Alpine from roughly 1993-2017. The extension for PGP was working, but rather clumsy. I ultimately switched to NeoMutt about a year ago

I have used Pine and then Alpine from roughly 1993-2017. The extension for PGP was working, but rather clumsy. I ultimately switched to NeoMutt about a year ago, which has a seamless PGP integration (searching on encrypted mail!), very good filtering capabilities, and a sidebar that shows folders. Goodbye pico, though and hello to vi. https://www.neomutt.org https://www.neomutt.org