Email Formats

{
  "mx": [
    "40 webmail.signal-iduna.pl.",
    "20 mail2.signal-iduna.pl.",
    "10 mail.signal-iduna.pl.",
    "30 mail3.signal-iduna.pl.",
    "50 mail5.signal-iduna.pl."
  ],
  "spf": [
    "v=spf1 mx ip4:81.219.38.2 ip4:77.79.194.154 ~all"
  ]
}