Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"10 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 include:servers.mcsv.net include:us._netblocks.mimecast.com include:sendgrid.net ip4:45.33.108.129 include:mail142.pd2.onpdr.com ip4:80.233.244.142 include:spf.mandrillapp.com ~all"
]
}