Email Formats
{
"mx": [
"10 usb-smtp-inbound-1.mimecast.com.",
"10 usb-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 mx ip4:65.123.167.90 ip4:65.123.167.101 ip4:65.123.167.102 include:usb._netblocks.mimecast.com include:res.cisco.com include:spf.protection.outlook.com ~all"
]
}