diff --git a/schemas/domain.schema.json b/schemas/domain.schema.json
index e14e77d9..c4affdc3 100644
--- a/schemas/domain.schema.json
+++ b/schemas/domain.schema.json
@@ -351,8 +351,7 @@
         "MX": {
           "type": "array",
           "items": {
-            "type": "string",
-            "pattern": "^[a-z0-9_./-]*\\.$"
+            "type": "string"
           }
         },  
         "NS": {