Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"10 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 include:us._netblocks.mimecast.com ip4:12.189.148.0/24 ip4:216.136.148.199/32 ip4:167.89.42.32/32 include:spf-fireeye.copyright.com include:_spf.salesforce.com include:aspmx.pardot.com include:es._spf.adp.com ~all"
]
}