Email Formats
{
"mx": [
"1 us-smtp-inbound-1.mimecast.com.",
"1 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 mx ip4:75.126.12.238 ip4:169.53.56.76 ip4:169.53.56.77 ip4:50.58.180.8 ip4:50.58.180.124 include:spf.protection.outlook.com include:us._netblocks.mimecast.com -all"
]
}