Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"10 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 mx ip4:185.74.56.226/32 ip4:80.75.65.180/28 ip4:194.247.71.30/32 include:us._netblocks.mimecast.com include:authsmtp.com include:spf.protection.outlook.com a:sendgrid.net mx:sendgrid.net ~all"
]
}