Email Formats

{
  "mx": [
    "0 mail.topcard.com.br."
  ],
  "spf": [
    "v=spf1 ip4:162.241.107.57 +mx +a +ip4:162.241.34.38 +ip4:187.0.197.52 +ip4:187.0.197.51 +ip4:187.0.214.42 +ip4:187.0.214.43 +include:_spf.google.com -all"
  ]
}