Email Formats
{
"mx": [
"10 mail1.central.co.th.",
"20 mail2.central.co.th."
],
"spf": [
"v=spf1 ip4:110.164.204.57 ip4:203.146.94.77 ip4:110.164.181.167 include:spf.protection.outlook.com include:_spf.one.th include:smtp.txmsv.com -all"
]
}