Email Formats

{
  "mx": [
    "10 vm.mail.rcn.net.",
    "50 vm.atw.mail.rcn.net."
  ],
  "spf": [
    "v=spf1 ip4:207.172.4.0/24 ip4:207.172.157.0/24 ip4:129.213.13.252/32 ip4:129.159.122.98/32 -all"
  ]
}