Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"10 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 mx a include:_spf.psm.knowbe4.com include:spf.protection.outlook.com include:us._netblocks.mimecast.com ip4:147.160.167.0/26 ip4:149.72.147.186 ip4:167.89.101.239 ip4:142.0.180.120 ip4:168.245.40.44 -all"
]
}