Update not-ethan.json

domains/not-ethan.json

@@ -4,6 +4,8 @@
         "email": "ethans0408.5@gmail.com"
     },
     "record": {
-            "CNAME": "not-a-ethan.github.io"
+        "MX": ["mx1.improvmx.com", "mx2.improvmx.com"],
+        "TXT": "v=spf1 include:spf.improvmx.com ~all",
+        "CNAME": "not-a-ethan.github.io"
     }
 }