Email Formats
{
"mx": [
"10 us-smtp-inbound-2.mimecast.com.",
"10 us-smtp-inbound-1.mimecast.com."
],
"spf": [
"v=spf1 ip4:209.245.224.64/28 ip4:205.219.236.35 ip4:52.61.90.134 include:spf.protection.office365.us include:us._netblocks.mimecast.com ~all"
]
}