Email Formats

{
  "mx": [
    "10 mx2.tigertech.net.",
    "10 mx1.tigertech.net.",
    "20 mx3.tigertech.net."
  ],
  "spf": [
    "v=spf1 ip4:208.80.4.0/22 ip4:74.114.88.0/22 ip4:158.51.60.0/22  ip4:170.39.128.0/22 ip6:2604:4f00::/32 ~all"
  ]
}