Email Formats
{
"mx": [
"10 mail.hipt.com.vn.",
"10 mail.jsc.hipt.com.vn.",
"10 mail.dx.hipt.com.vn."
],
"spf": []
}
{
"mx": [
"10 mail.hipt.com.vn.",
"10 mail.jsc.hipt.com.vn.",
"10 mail.dx.hipt.com.vn."
],
"spf": []
}