{
  pkgs,
  lib,
  config,
  dots,
  ...
}:

{
  imports = [
    ./mailcap.nix
  ];

  options.custom.email = with lib; {
    enable = mkEnableOption "Enable email";
    davmail = mkEnableOption "Enable DavMail";
    mbsync = mkEnableOption "Enable Mbsync";
    neomutt = mkEnableOption "Enable NeoMutt";
  };

  config = lib.mkIf config.custom.email.enable {
    # DavMail service (Exchange gateway)
    services.davmail = {
      enable = config.custom.email.davmail;
      configFile = "${dots}/config/davmail/davmail.properties";
    };

    # Mbsync service (mail sync)
    services.mbsync = {
      enable = config.custom.email.mbsync;
      configFile = "${dots}/config/mbsync/mbsyncrc";
      frequency = "*:0/1";
    };

    # Install mail-related packages
    home.packages = with pkgs; [
      isync # mbsync
      msmtp
      sops # for password decryption
      age # for sops age backend
    ];

    # Symlink config files
    xdg.configFile = {
      # msmtp config
      "msmtp/config".source = config.lib.file.mkOutOfStoreSymlink "${dots}/config/msmtp/config";

      # neomutt configs
      "neomutt/neomuttrc".source = config.lib.file.mkOutOfStoreSymlink "${dots}/config/neomutt/neomuttrc";
      "neomutt/keybinds".source = config.lib.file.mkOutOfStoreSymlink "${dots}/config/neomutt/keybinds";
      "neomutt/colors".source = config.lib.file.mkOutOfStoreSymlink "${dots}/config/neomutt/colors";
      "neomutt/accounts/personal".source =
        config.lib.file.mkOutOfStoreSymlink "${dots}/config/neomutt/accounts/personal";
      "neomutt/accounts/uchicago".source =
        config.lib.file.mkOutOfStoreSymlink "${dots}/config/neomutt/accounts/uchicago";
      "neomutt/signatures/personal".source =
        config.lib.file.mkOutOfStoreSymlink "${dots}/config/neomutt/signatures/personal";
      "neomutt/signatures/uchicago".source =
        config.lib.file.mkOutOfStoreSymlink "${dots}/config/neomutt/signatures/uchicago";

      # isync/mbsync config (some tools look here)
      "isyncrc".source = config.lib.file.mkOutOfStoreSymlink "${dots}/config/mbsync/mbsyncrc";
    };

    # neomutt program (for the package)
    programs.neomutt = lib.mkIf config.custom.email.neomutt {
      enable = true;
    };

    # Create mail directories
    home.activation.createMailDirs = lib.hm.dag.entryAfter [ "writeBoundary" ] ''
      mkdir -p ~/mail/personal/Inbox
      mkdir -p ~/mail/uchicago/Inbox
      mkdir -p ~/.cache/neomutt/headers
      mkdir -p ~/.cache/neomutt/messages
      mkdir -p ~/.local/state
    '';
  };
}