LnL7

{ config, pkgs, ... }:

let
  # Import unstable channel.
  # sudo nix-channel --add http://nixos.org/channels/nixpkgs-unstable nixpkgs-unstable
  # sudo nix-channel --update nixpkgs-unstable
  unstable = import <nixpkgs-unstable> {};
in

{

gipi

Configure reverse DNS in order to avoid mail seen as spam. From command line you can check as follow

$ nslookup ktln2.org
Server:		127.0.0.1
Address:	127.0.0.1#53

Non-authoritative answer:
Name:	ktln2.org
Address: 46.102.247.82