Email Formats
{
"mx": [
"10 filter1.cityau-2.mailguard.com.au.",
"20 filter2.cityau-2.mailguard.com.au.",
"30 filter3.cityau-2.mailguard.com.au."
],
"spf": [
"v=spf1 ip4:203.25.40.75 ip4:203.25.40.70 include:spf.protection.outlook.com include:customer.mailguard.com.au -all"
]
}