Email Formats

{
  "mx": [
    "20 mx.ct.mbox.net.",
    "10 mx.usa.net."
  ],
  "spf": [
    "v=spf1 ip4:208.93.26.27 ip4:67.212.189.234 ip4:173.239.115.34 ip4:65.182.202.34 ip4:199.231.142.220 ip4:204.12.71.74 ip4:165.212.65.113 ip4:165.212.182.250 include:spf.usa.net include:fiserv.com include:sendgrid.net -all"
  ]
}