Email Formats

{
  "mx": [
    "10 mail1.vietnamobile.com.vn.",
    "10 mail3.vietnamobile.com.vn.",
    "10 mail2.vietnamobile.com.vn."
  ],
  "spf": [
    "v=spf1 mx a ip4:103.129.188.66/32 ip4:103.129.188.88/32 ip4:103.129.188.222/32 ~all"
  ]
}