Email Formats

{
  "mx": [
    "10 x02.i.ismtp.integra.net.",
    "10 x03.i.ismtp.integra.net.",
    "20 x04.i.ismtp.integra.net.",
    "10 x00.i.ismtp.integra.net.",
    "10 x01.i.ismtp.integra.net.",
    "30 x05.i.ismtp.integra.net."
  ]
}