Email Formats

{
  "mx": [
    "10 mx1.renk.biz.",
    "20 mx2.renk.biz."
  ],
  "spf": [
    "v=spf1 mx ip4:80.81.23.0/28 ip4:88.217.158.160/28 ip4:80.81.28.224/27 -all"
  ]
}