Email Formats

{
  "mx": [
    "10 mx.sendgrid.net."
  ],
  "spf": [
    "v=spf1 a mx ip4:192.237.231.131 ip4:192.237.231.132 ip4:192.237.231.133 include:sendgrid.net include:zcsend.net ~all"
  ]
}