Email Formats

{
  "mx": [
    "4 mail.istt.ir."
  ],
  "spf": [
    "v=spf1 ip4:194.9.81.130/32 include:_spf.google.com include:sparkpostmail.com include:_spf.mlsend.com include:_spf.elasticemail.com -all"
  ]
}