Email Formats
{
"mx": [
"10 usb-smtp-inbound-1.mimecast.com.",
"10 usb-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 ip4:76.79.59.82 ip4:98.102.224.218 ip4:205.237.127.0/24 ip4:208.80.200.0/21 ip4:216.81.136.0/24 include:usb._netblocks.mimecast.com include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:sendgrid.net -all"
]
}