Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"10 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 ip4:192.188.155.0/24 ip4:97.107.70.0/24 ip4:208.185.229.0/24 ip4:208.185.235.0/24 include:us._netblocks.mimecast.com a a:smtpout.zixmail.net include:spf.bou80302.zixworks.com include:mailgun.org include:bouldercounty-org.spf.smtp25.com ~all"
]
}