Email Formats

{
  "mx": [
    "1 mx1.feishu.cn.",
    "10 mx3.feishu.cn.",
    "5 mx2.feishu.cn."
  ],
  "spf": [
    "v=spf1 include:_netblocks.m.feishu.cn include:mail.zendesk.com include:_spf.stgi.net ~all"
  ]
}