Email Formats
{
"mx": [
"10 usb-smtp-inbound-1.mimecast.com.",
"10 usb-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 mx ip4:204.12.14.56 ip4:204.14.12.58 ip4:204.14.15.11 ip4:204.14.15.12 include:swiftreach.com include:spf.protection.outlook.com include:usb._netblocks.mimecast.com ~all"
]
}