Email Formats
{
"mx": [
"10 ca-smtp-inbound-1.mimecast.com.",
"10 ca-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 ip4:66.209.187.70 ip4:207.107.151.20 ip4:207.107.78.210 ip4:198.21.2.183 include:ca._netblocks.mimecast.com include:spf.protection.outlook.com -all"
]
}