diff --git a/root/amery/opensde.org.zone.in b/root/amery/opensde.org.zone.in
index 1d24f93..3f7e263 100644
--- a/root/amery/opensde.org.zone.in
+++ b/root/amery/opensde.org.zone.in
@@ -1,4 +1,5 @@
 @@ECN_NS@@
+@@OPENSDE_MX_TEMP@@
 
 +@@DOMAIN@@:@@YODA1@@
 +www.@@DOMAIN@@:@@YODA1@@
diff --git a/stage/opensde.org.zone b/stage/opensde.org.zone
index 6d7c30a..038d080 100644
--- a/stage/opensde.org.zone
+++ b/stage/opensde.org.zone
@@ -3,6 +3,14 @@
 &opensde.org::ns2.easy-cloud.net:86400
 &opensde.org::ns3.easy-cloud.net:86400
 
+# MX@OPENSDE
+@opensde.org::mx.opensde.net:1:86400
+
+# backward compatibility
++mx.opensde.org:188.40.92.201
++mx2.opensde.org:188.40.92.201
++smtp.opensde.org:188.40.92.201
+
 
 +opensde.org:188.40.92.251
 +www.opensde.org:188.40.92.251