{ config, lib, pkgs, ... }: with import <stockholm/lib>; { krebs.exim-retiolum = { enable = true; system-aliases = [ { from = "root"; to = "lass"; } ]; }; krebs.iptables.tables.filter.INPUT.rules = [ { predicate = "-i retiolum -p tcp --dport smtp"; target = "ACCEPT"; } ]; }