https://aerc-mail.org/

aerc a pretty good email client

source code releases mailing lists bug tracker

A pretty good email client

aerc is an email client that runs in your terminal. It's highly
efficient and extensible, perfect for the discerning hacker. Check
out the screencast above to get an idea of how it's used.

Notice: aerc is a work in progress. All of the features below are
working, but expect to find bugs.

Some of its more interesting features include:

  * Editing emails in an embedded terminal tmux-style, allowing you
    to check on incoming emails and reference other threads while you
    compose your replies
  * Render HTML emails with an interactive terminal web browser,
    highlight patches with diffs, and browse with an embedded less
    session
  * Vim-style keybindings and ex-command system, allowing for
    powerful automation at a single keystroke
  * First-class support for working with git & email
  * Open a new tab with a terminal emulator and a shell running for
    easy access to nearby git repos for parallel work
  * Support for multiple accounts, with support for IMAP, Maildir,
    SMTP, and sendmail transfer protocols
  * Asynchronous IMAP support ensures the UI never gets locked up by
    a flaky network, as mutt often does
  * Efficient network usage - aerc only downloads the information
    which is necessary to present the UI, making for a snappy and
    bandwidth-efficient experience
  * 100% free and open source software!