Email Formats

{
  "mx": [
    "1 mta6.am0.yahoodns.net.",
    "1 mta5.am0.yahoodns.net.",
    "1 mta7.am0.yahoodns.net."
  ],
  "spf": [
    "v=spf1 include:_spf.frontier.com include:_spf2.frontier.com include:_spf.mail.yahoo.com include:sendgrid.net include:mktomail.com include:icpbounce.com include:_spf.act-on.net include:rs-relay.synchronoss.com include:spf.postal.nudgepro.tech ~all"
  ]
}