Add JSON file for domain key configuration

domains/resend._domainkey.amanuel.json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "amuif28",
+    "email": "amuif28@gmail.com"
+  },
+  "record": {
+    "TXT": ["p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDJ/d2lNtRqyBYZ/j1AVK4kchknNhYED1y88yp0MEGzXTC01Orua65C2T8v8Z77s//iIOCRiZiRKJAz/9TEz41LG27MVDYto/KW34fslg8j56M0+WQiW0BV4IC7bcm/jQJnNka5B+GwDh6BEIvuIe7C8Ni+XmYtRQQL45swMwo4fQIDAQAB"]
+  }
+}