Email Formats

{
  "mx": [
    "10 mx1.cc.ic.ac.uk.",
    "10 mx2.cc.ic.ac.uk.",
    "10 mx3.cc.ic.ac.uk.",
    "10 mx4.cc.ic.ac.uk."
  ],
  "spf": [
    "v=spf1 include:_spf.imperial.ac.uk ~all"
  ]
}