Email Formats
{
"mx": [
"10 usb-smtp-inbound-1.mimecast.com.",
"10 usb-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 include:usb._netblocks.mimecast.com ip4:66.114.38.83 ip4:192.254.121.101 ip4:173.160.228.108 ip4:52.156.135.155 include:spf.protection.outlook.com include:spf.us.exclaimer.net ~all"
]
}