Email Formats
{
"mx": [
"0 us-mx01a.hornetsecurity.com.",
"0 us-mx01fallback.hornetsecurity.com.",
"0 us-mx01b.hornetsecurity.com."
],
"spf": [
"v=spf1 mx include:netblocks.dreamhost.com include:relay.mailchannels.net -all"
]
}