Email Formats

{
  "mx": [
    "5 mx-bjentcloud.icoremail.net.",
    "10 mx2.bjentcloud.cn.",
    "20 mx3.bjentcloud.cn."
  ],
  "spf": [
    "v=spf1 include:spf.163.com -all",
    "v=spf1 include:spf.bjentcloud.cn -all"
  ]
}