Email Formats

{
  "mx": [
    "10 sritex-co-id.p10.mxthunder.com.",
    "20 sritex-co-id.p20.mxthunder.net.",
    "30 sritex-co-id.p30.mxthunder.net.",
    "40 sritex-co-id.p40.mxthunder.net."
  ]
}