Email Formats
{
"mx": [
"10 usb-smtp-inbound-1.mimecast.com.",
"10 usb-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 a mx ptr a:sa-as.com ip4:209.128.119.121/24 include:sa-as.com include:spf.protection.outlook.com ip4:209.128.119.1/24 ip4:209.128.92.1/24 include:usb._netblocks.mimecast.com -all"
]
}