Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"10 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 a mx include:_netblocks.mimecast.com include:spf.protection.outlook.com include:frevvo.com include:sendgrid.net include:netcorecloud.net ip4:50.31.42.138 ip4:24.75.52.41 ~all"
]
}