Email Formats

{
  "mx": [
    "10 mx1.improvmx.com.",
    "0 lanchi-vn.mail.protection.outlook.com.",
    "32767 ms69873632.msv1.invalid.",
    "20 mx2.improvmx.com."
  ],
  "spf": [
    "v=spf1 include:sendgrid.net include:spf.improvmx.com include:_spf.google.com include:spf.protection.outlook.com ~all"
  ]
}