Unfortunately, there is currently no reasonable way to use GPG/PGP from within Gmail directly. The only two options are to encrypt the message manually from a client-side tool, pasting the result into Gmail when you're done, or to use a desktop mail client with GPG integration (such as Thunderbird + Enigmail) to send messages you need to be encrypted.
Mar 04, 2017 Critical vulnerabilities in PGP/GPG and S/MIME email May 14, 2018 GPG for email (and other stuff?) - together.jolla.com Since the email handling in SailfishOS is open source and since some versions, the email client exposes its proprietary QML files for patching, I've decided to try to implement the GPG signing capabilities into the client. Everything is visible in the Mer gitlab. The job was quite long (started last spring), or I am too slow, but it is possible
eM Client | Wilders Security Forums
Thunderbird 78 : derrière le renouveau du client email, la Le client email Thunderbird n'a pas eu droit aux mêmes égards, tout du moins pas au même moment. Il faut dire que son histoire est chaotique. Il faut dire que son histoire est chaotique. Configure PGP for Evolution Email Client - Real Time See how you can integrate this with Evolution email client. Key Generation, Command Line Interface (CLI) First, you'll need to make sure you have (or install) the following packages: gnupg. gnupg-agent. Then proceed with the following: Launch a terminal window by hitting Alt & F2 then type xterm. Enter the following xterm window: gpg --gen-key
Best Email Client for Windows 10: Unbiased Reviews (2020)
If you don't care about RSS feeds because you use your Windows email program for email only, you should know that Claws Mail does everything an email client should do and more. It has extensive search and filtering capabilities, supports GPG and SSL, features templates for messages, and provides a great plain-text email editing experience.