Email Formats

{
  "mx": [
    "5 mail.eiso.com.tw."
  ],
  "spf": [
    "v=spf1 mx include:amazonses.com include:mailgun.org include:letsencrypt.top ip4:60.251.215.216 ip4:60.251.215.217 ip4:60.251.215.210 -all"
  ]
}