Email Formats

{
"mx": [
"20 mx.guosen.com.cn.",
"10 smtp.guosen.com.cn."
],
"spf": [
"v=spf1 ip4:61.141.193.178 ip4:61.141.193.174 ip4:58.251.3.78 include:spf.icoremail.net -all"
]
}