Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"10 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 ip4:165.219.245.81 ip4:165.219.245.82 ip4:165.219.91.8 ip4:216.17.113.98 include:us._netblocks.mimecast.com include:mail.zendesk.com -all"
]
}