Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"10 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 mx ip4:207.10.37.41 ip4:207.10.37.45 ip4:12.23.102.144/29 ip4:12.23.102.136/29 include:us._netblocks.mimecast.com include:spf.protection.outlook.com ~all"
]
}