Email Formats

{
  "mx": [
    "1 mx1.feishu.cn.",
    "10 mx3.feishu.cn.",
    "5 mx2.feishu.cn."
  ],
  "spf": [
    "v=spf1 include:_netblocks.m.feishu.cn include:amazonses.com include:us-west-2.amazonses.com include:ka.d.sender-sib.com ~all"
  ]
}