Email Formats

{
  "mx": [
    "10 xcrmx1.crc.com.cn.",
    "10 xcrmx2.crc.com.cn.",
    "10 xcrmx3.crc.com.hk."
  ],
  "spf": [
    "v=spf1 include:spf.crc.com.cn -all"
  ]
}