Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"10 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 mx a include:us._netblocks.mimecast.com include:aspmx.pardot.com include:_spf.salesforce.com ip4:4.78.163.194 ip4:199.27.251.28 ip4:199.10.6.233 -all"
]
}