Email Formats

{
  "mx": [
    "5 mx-a.mail.citi.com.",
    "5 mx-b.mail.citi.com."
  ],
  "spf": [
    "v=spf1 a:mail.citigroup.com ip4:217.29.160.12 ip4:84.45.73.5 include:spf-00123c01.pphosted.com ~all"
  ]
}