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 mx a ip4:23.244.65.119 ip4:23.244.65.120 ip4:23.244.65.118 include:send.aweber.com a:dispatch-us.ppe-hosted.com -all"
]
}