Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"10 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 ip4:198.59.135.0/24 ip4:173.166.193.104/29 ip4:38.114.235.0/26 ip4:174.129.238.35 ip4:18.214.171.80 include:_spf.smtp.com include:us._netblocks.mimecast.com ~all"
]
}