Email Formats

{
  "mx": [
    "21 mx01.1and1.com.",
    "20 mx00.1and1.com.",
    "20 spamtitan.tsman.com.",
    "10 mail.tsman.com."
  ],
  "spf": [
    "v=spf1 a mx ip4:24.51.248.85 -all"
  ]
}