Email Formats
{
"mx": [
"10 za-smtp-inbound-1.mimecast.co.za.",
"10 za-smtp-inbound-2.mimecast.co.za."
],
"spf": [
"v=spf1 include:za._netblocks.mimecast.com ip4:129.232.250.0/24 ip4:197.189.247.0/24 ip4:196.40.103.46 ip4:156.38.154.0/24 -all"
]
}