Email Formats

{
  "mx": [
    "1 mx.cesnet.cz.",
    "1 ag1.cesnet.cz.",
    "1 ag2.cesnet.cz.",
    "1 mx2.cesnet.cz."
  ],
  "spf": [
    "v=spf1 a:mail.vfu.cz include:spf.protection.outlook.com ip4:195.113.198.0/24 include:web.spf.e-fractal.cz ip6:2603:10a6:150:1::20 ~all"
  ]
}