Email Formats

{
  "mx": [
    "20 smtp.chinamobilehk.com."
  ],
  "spf": [
    "v=spf1 ip4:210.3.20.243 ip4:118.143.38.192/28 include:spf.chinamobilehk.com include:senderid.on-nets.com a mx -all"
  ]
}