Email Formats

{
  "mx": [
    "10 syntal-com.mx1.arsmtp.com.",
    "20 syntal-com.mx2.arsmtp.com."
  ],
  "spf": [
    "v=spf1 include:appriver.com include:investorbridge.com ip4:216.82.193.252 ip4:167.89.18.146 ip4:192.254.117.81 -all"
  ]
}