Being smarter about how I read my mail. Less-awful-UX in email clients.
This problem is not too hard to solve on Windows or Macos. On linux it is a shitshow. Consequently, I have listed all the linux-specific options separately. You could probably have a look at those too. Many of them run on Windows or macos too. (Although the ones that do are uninspiring).
Apple Mail is built in to macos and I think it is pretty good. Obviously only runs on macos.
gpgtools will upgrade even Apple Mail to be a bit more encryptey, if that seems exciting.
Mailbird (Commercial, Mac/Windows).
Polymail (Commercial, mac/windows/ios/maybe android) is an email client that promises AI automation stuff.
Spark is a commercial app that comes recommended as being less of a mess than other mail thingies and for innovating in design and such. (macOS/android).
Weird open-source alternative email client mailpile tries to be hackable and secure. AGPL-licensed, which is a mildly irritating licence. Reinventing lots of wheels and full of odd obsolescent dependencies. I like their aspirations, but their github tracker feels amateurish. Watch how they cargo-cult in an unmaintained Bayesian spam filter as essential infrastructure without the ability to maintain it! Thrill to their unclear threat model! Panic as they take years to get prototypes working! Or don’t. I won’t.
“mailvelope is an easy-to-use web-browser extension which brings OpenPGP encryption to webmail services such as Gmail™, Yahoo™ and others. With its unintrusive interface fully integrated into your webmail service, Mailvelope instantly secures your personal and professional email communications.”
One day I will have a problem that involves sending GPG mail, and on that day this will solve a problem for me.
Postbox seems OK.