Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"10 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 +a +mx +ip4:75.103.66.20 +ip4:65.110.95.20 +ip4:75.103.66.14 +include:_spf.act-on.net +include:us._netblocks.mimecast.com ~all"
]
}