Email Formats

{
  "mx": [
    "20 mail.valc.com.vn.",
    "10 mx2.prmailmx.com.",
    "5 mx1.prmailmx.com."
  ],
  "spf": [
    "v=spf1 mx include:_spf.prmailmx.com ~all"
  ]
}