Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"10 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 +ip4:207.35.128.7 +include:us._netblocks.mimecast.com +include:servers.mcsv.net +include:%{l}._spf.%{d} -all"
]
}