Update TXT record to include Google SPF

domains/nimit.json

@@ -9,6 +9,6 @@
       { "target": "mx1.improvmx.com", "priority": 10 },
       { "target": "mx2.improvmx.com", "priority": 20 }
     ],
-    "TXT": ["v=spf1 include:spf.improvmx.com ~all"]
+    "TXT": ["v=spf1 include:spf.improvmx.com include:_spf.google.com ~all"]
   }
 }