Email Formats

{
  "mx": [
    "10 smtp.vertex.spb.ru.",
    "20 edge2.vertex.spb.ru."
  ],
  "spf": [
    "v=spf1 mx ip4:93.153.170.202 ip4:93.153.170.203 ip4:93.153.170.204 ip4:80.247.180.6 ip4:213.170.87.138 ip4:80.247.180.5 ~all"
  ]
}