Mail

A simple NixOS mailserver.

View the nix-core NixOS module on GitHub.

References

docs

Setup

Config

`flake.nix`

inputs = {
  nixos-mailserver.url = "gitlab:simple-nixos-mailserver/nixos-mailserver";
  nixos-mailserver.inputs.nixpkgs.follows = "nixpkgs";
};

Host configuration:

imports = [ inputs.core.nixosModules.mailserver ]

mailserver = {
  enable = true;
  loginAccounts = {
    "ADMIN@${config.networking.domain}" = {
      # nix-shell -p mkpasswd --run 'mkpasswd -sm bcrypt'
      hashedPasswordFile = config.sops.secrets."mailserver/accounts/ADMIN".path;
      aliases = [ "postmaster@${config.networking.domain}" ];
    };
  };
};
sops.secrets."mailserver/accounts/ADMIN" = { };

Replace ADMIN with an existing administrator account.

You may need to set mailserver.stateVersion. At the time of writing, you need to set it to 3, but you should check the mailserver docs yourself.