Email Formats

{
  "mx": [
    "10 constructivebuildingsolutions-com.p10.mxthunder.com.",
    "20 constructivebuildingsolutions-com.p20.mxthunder.net.",
    "30 constructivebuildingsolutions-com.p30.mxthunder.net.",
    "40 constructivebuildingsolutions-com.p40.mxthunder.net."
  ],
  "spf": [
    "v=spf1 include:amazonses.com ~all"
  ]
}