diff --git a/krebs/3modules/default.nix b/krebs/3modules/default.nix
index d77d00c05..9ad9c9f91 100644
--- a/krebs/3modules/default.nix
+++ b/krebs/3modules/default.nix
@@ -455,6 +455,13 @@ let
       cd = {
         cores = 2;
         dc = "tv"; #dc = "cac";
+        extraZones = {
+          "de.krebsco" = ''
+            mx23          IN A ${elemAt nets.internet.addrs4 0}
+            cd            IN A ${elemAt nets.internet.addrs4 0}
+            krebsco.de.   IN MX 5 mx23
+          '';
+        };
         nets = rec {
           internet = {
             addrs4 = ["162.219.7.216"];