Kukulkan

Email client in beta stage.

Main Features

• integrates with notmuch and sendmail/msmtp/...
• fast and responsive web interface
• support for multiple email accounts
• all search queries/thread IDs/message IDs/etc part of URL, i.e. you can
  bookmark "views"
• autocomplete notmuch queries, including history of previous queries
• color chips for addresses and tags
• thread/message subject set as page title, i.e. you can search through your
  emails by typing in your browser search bar
• thread overview shows first few lines of messages that are not "open" for
  quick overview
• signatures/quoted text shown collapsed by default
• preview of attachments, quick links in collapsed messages for easy download
• threads can be shown in full or individual "fibers" (complete paths from root
  to leaf in thread tree)
• thread overview that shows map of thread tree colored by tag, addresses, and
  subject -- allows for easy identification of messages where subject was
  changed or people added or dropped
• text-only view of every message, HTML in emails stripped of tracking links etc
• allows to filter "CAUTION EXTERNAL EMAIL" and similar stuff before showing
  emails
• GPG and S/MIME verification support, S/MIME signing support
• email "security" verification (DKIM etc)
• edit notmuch tags for emails/threads with tag autocomplete, batch tagging for
  threads
• reply/reply all/forward emails
• calendar invitation support -- reply, preview (with times converted to local
  timezone), link to add to Google Calendar
• compose email templates
• autocomplete addressed when composing email
• tags from "parent" email automatically applied to new email when replying
• quote only relevant part of email being replied to
• draft emails backed up in localStorage
• external editor support
• progress bar when sending email
• TODO view -- lists emails tagged "todo", sorted by due date (specified in
  another tag), shows calendar overview and time until due
• keyboard shortcuts available for all actions
• fully tested backend and frontend
• minimal resource requirements, small frontend bundle size

Assumes that you have notmuch installed and working. Start the server with FLASK_APP=kukulkan NOTMUCH_CONFIG="$HOME/.notmuch-config" flask run (changing the path to your notmuch config if necessary) and the client with npm start in the respective directories.

For the production version, it should be sufficient to serve the prod/ directory through a suitable WSGI container, e.g. gunicorn 'kukulkan.prod.kukulkan:create_app()'. The files in prod/static were created using npm run build in the src/client directory. The deploy.sh script automates deployment to the prod/ directory.

The server was inspired by netviel.

Test emails from the notmuch repository, the Python EML parse module, the Apache James Project, Expresso Livre 3, ripgrep, and Simple Java Mail.