Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"10 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 ip4:148.59.37.240/29 ip4:148.59.37.224/28 ip4:64.132.81.225 ip4:143.170.98.16/28 ip4:198.54.111.136/30 ip4:148.59.37.192/28 include:us._netblocks.mimecast.com ~all"
]
}