Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"20 us-smtp-inbound-2.mimecast.com.",
"30 blduke-com.mail.protection.outlook.com."
],
"spf": [
"v=spf1 mx ip4:12.229.173.34 include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:_spf.salesforce.com include:spf.salesforce.com ~all"
]
}