Email Formats
{
"mx": [
"10 filter3.holden-8.mailguard.com.au.",
"1 filter1.holden-8.mailguard.com.au.",
"5 filter2.holden-8.mailguard.com.au."
],
"spf": [
"v=spf1 include:spf.protection.outlook.com include:customer.mailguard.com.au -all"
]
}