Email Formats
{
"mx": [
"20 alt1.us.email.fireeyecloud.com.",
"30 alt2.us.email.fireeyecloud.com.",
"40 alt3.us.email.fireeyecloud.com.",
"10 primary.us.email.fireeyecloud.com."
],
"spf": [
"v=spf1 include:spf.protection.outlook.com include:amazonses.com -all"
]
}