diff --git a/zones/fudo.ca.nix b/zones/fudo.ca.nix
index 869bb6b..4832af1 100644
--- a/zones/fudo.ca.nix
+++ b/zones/fudo.ca.nix
@@ -1,6 +1,4 @@
 {
-  mx = [ "smtp.fudo.org." ];
-
   aliases = {
     w = "www.fudo.ca.";
     ww = "www.fudo.ca.";
diff --git a/zones/fudo.im.nix b/zones/fudo.im.nix
index 440ccb2..ce2bfb3 100644
--- a/zones/fudo.im.nix
+++ b/zones/fudo.im.nix
@@ -1,5 +1 @@
-{
-  mx = [ "mail.fudo.org." ];
-
-  gssapi-realm = "FUDO.ORG";
-}
+{ gssapi-realm = "FUDO.ORG"; }