Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"10 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 include:us._netblocks.mimecast.com include:mktomail.com ~all",
"v=spf1 ip4:159.183.128.3/32 ip4:149.72.125.170/32 ip4:159.183.136.159/32 ip4:149.72.175.71/32 ip4:159.183.130.51/32"
]
}