Email Formats
{
"mx": [
"5 daeduck1.cloudmailgate.co.kr.",
"5 daeduck2.cloudmailgate.co.kr."
],
"spf": [
"v=spf1 ip4:61.83.212.247 ip4:61.83.212.40 ip4:61.83.212.28 ip4:61.83.212.253 ip4:61.83.212.45 ip4:61.83.212.55 include:spf.protection.outlook.com ip4:211.37.150.212 -all"
]
}