Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"20 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 mx ip4:38.95.67.130 ip4:99.29.25.130 ip4:38.95.67.134 ip4:38.95.67.129 ip4:99.29.25.129 ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 a include:us._netblocks.mimecast.com ~all"
]
}