Email Formats
{
"mx": [
"10 callnetservices.com.mx1.rcimx.com.",
"20 callnetservices.com.mx2.rcimx.com.",
"30 callnetservices.com.mx3.rcimx.com.",
"40 callnetservices.com.mx4.rcimx.com."
],
"spf": [
"v=spf1 mx a ip4:208.80.200.0/21 -all"
]
}