Email Formats

{
  "mx": [
    "10 mx1.petrochina.com.cn.",
    "10 mx2.petrochina.com.cn."
  ],
  "spf": [
    "v=spf1 ip4:219.143.68.2 ip4:61.232.0.0/26 ip4:219.143.68.3 ip4:61.232.0.57 ip4:219.143.68.64/26 ip4:219.143.68.4 ip4:219.143.68.5 ip4:192.155.91.4 ip4:139.162.32.54 ip4:172.105.166.231 ip4:107.150.122.199 ip4:107.150.125.94 ~all"
  ]
}