Email Formats

{
  "mx": [
    "10 mx00.1and1.com.",
    "20 mx01.1and1.com."
  ],
  "spf": [
    "v=spf1 a:smtp.1and1.com a:smtp.ionos.com include:1and1.com include:ionos.com include:_spf.perfora.net include:_spf.kundenserver.de mx ~all"
  ]
}