Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"20 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 a ip4:47.45.17.128/30 ip4:71.13.162.128/28 ip4:71.13.169.80/28 ip4:65.221.153.67 ip4:148.105.12.0/24 ip4:198.2.128.0/18 ip4:205.201.128.0/20 include:spf.protection.outlook.com -all"
]
}