Update DNS records in tanisheesh.json

Removed MX records and updated TXT records for verification.

domains/tanisheesh.json

@@ -5,7 +5,8 @@
     },
     "records": {
         "A": ["216.198.79.1"],
-        "MX": ["mx1.improvmx.com", "mx2.improvmx.com"],
-        "TXT": ["v=spf1 include:spf.improvmx.com ~all"]
+        "TXT": [
+            "zoho-verification=zb60574851.zmverify.zoho.com"
+        ]
     }
 }