nixos-config/system/home-manager/email.nix

{ config, ... }:

{
  imports = [ ../../secrets/email.nix ];

  accounts.email.maildirBasePath = "$HOME/.maildir";

  programs.neomutt = {
    enable = true;
    sort = "date";
    settings = {
      imap_idle = "yes";
      imap_check_subscribed = "yes";
      mail_check = "90";
      timeout = "15";
      header_cache = "${config.xdg.cacheHome}/neomutt/headers";
      message_cachedir = "${config.xdg.cacheHome}/bodies";
      certificate_file = "${config.xdg.cacheHome}/certificates";
      edit_headers = "yes";
      charset = "UTF-8";
      realname = "'Christoph Heiss'";
      use_domain = "no";
      use_from = "yes";
      use_threads = "threads";
    };
    binds = [
      {
        map = [ "generic" ];
        key = "h";
        action = "next-entry";
      }
      {
        map = [ "generic" ];
        key = "t";
        action = "previous-entry";
      }
      {
        map = [ "index" "pager" ];
        key = "h";
        action = "next-undeleted";
      }
      {
        map = [ "index" "pager" ];
        key = "t";
        action = "previous-undeleted";
      }
      {
        map = [ "generic" "index" "pager" ];
        key = "\\Ce";
        action = "half-down";
      }
      {
        map = [ "generic" "index" "pager" ];
        key = "\\Cu";
        action = "half-up";
      }
    ];
    extraConfig = ''
      ignore X-Mailer

      # Colors
      # Diff changes
      color body brightgreen   default "^[+].*"
      color body brightred     default "^[-].*"
      # Diff file
      color body green         default "^[-][-][-] .*"
      color body green         default "^[+][+][+] .*"
      # Diff header
      color body green         default "^diff .*"
      color body green         default "^index .*"
      # Diff chunk
      color body cyan          default "^@@ .*"
      # Linked issue
      color body brightgreen   default "^(close[ds]*|fix(e[ds])*|resolve[sd]*):* *#[0-9]+$"
      # Credit
      color body brightwhite   default "(signed-off|co-authored)-by: .*"
      # Subject
      color header brightwhite default "Subject"
      # Index
      color index brightwhite  default '~U'
      color index brightblue   default '~(~P)'
      color index brightyellow default '~p'
      color index brightgreen  default '~p =s applied'
    '';
  };
}