Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"10 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 include:_spf.createsend.com include:us._netblocks.mimecast.com ip4:98.173.19.144 ip4:192.249.114.7 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:spf.constantcontact.com include:_spf.rezfusion.com -all"
]
}