Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"10 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 mx ip4:69.20.56.82 ip4:198.2.134.54 ip4:65.207.12.228 ip4:64.159.129.38 ip4:65.207.12.229 include:spf.protection.outlook.com include:us._netblocks.mimecast.com -all"
]
}