Email Formats

{
  "mx": [
    "10 smtp.nuctech.com.",
    "20 mailsg.nuctech.com."
  ],
  "spf": [
    "v=spf1 a mx ip4:129.227.73.182 ip4:117.130.205.3 ip4:219.141.186.71 ip4:218.188.86.131 ip4:218.188.86.132 ip4:117.133.36.131 -all"
  ]
}