Email Formats

{
  "mx": [
    "90 mx3c28.concentric.com.",
    "10 mx1c28.concentric.com.",
    "90 mx4c28.concentric.com.",
    "90 mx2c28.concentric.com."
  ],
  "spf": [
    "v=spf1 include:spf.mailjet.com a mx ip4:66.175.52.0/24 ip4:52.70.23.43 ip4:198.61.220.203 ip4:162.209.127.16 ip4:207.155.248.14 ip4:166.78.236.16 include:email-od.com include:_spf.mailersend.net ~all"
  ]
}