Email Formats

{
  "mx": [
    "10 mi.ruhr-uni-bochum.de."
  ],
  "spf": [
    "v=spf1 exists:%{ir}.%{v}._spfx.mail.ruhr-uni-bochum.de exists:%{ir}._ip.%{l1r+}._spfx.mail.ruhr-uni-bochum.de ~all"
  ]
}