Email Formats
{
"mx": [
"10 au-smtp-inbound-1.mimecast.com.",
"10 au-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 mx a ip4:129.127.208.0/24 ip4:203.31.255.0/24 ip4:129.127.149.101 include:servers.mcsv.net include:au._netblocks.mimecast.com -all"
]
}