Email Formats
{
"mx": [
"10 au-smtp-inbound-1.mimecast.com.",
"10 au-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 ip4:52.147.47.84 ip4:20.42.218.90 ip4:210.54.239.33 ip4:203.109.150.33 include:spf.protection.outlook.com include:au._netblocks.mimecast.com include:spf.securedsigning.com -all"
]
}