Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"10 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 include:_netblocks.mimecast.com include:spf.messagelabs.com include:spf.dynect.net include:mailgun.org include:spf.US.exclaimer.net include:spfref.jackhenry.com ~all"
]
}