Email Formats

{
  "mx": [
    "3 mx-scu-edu-cn.icoremail.net.",
    "5 mail.scu.edu.cn."
  ],
  "spf": [
    "v=spf1 ip4:202.115.35.227  ip4:202.115.35.229 ip4:202.115.35.228  include:spf.icoremail.net -all"
  ]
}