Email Formats

{
  "mx": [
    "5 mx1.alibaba-inc.com.",
    "10 mxus1.alibaba-inc.com."
  ],
  "spf": [
    "v=spf1 include:spf1.staff.mail.aliyun.com ip4:116.236.204.5 ip4:27.115.10.124 ip4:140.207.236.2  -all"
  ]
}