Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"10 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 include:spf.constantcontact.com include:spf.tipalti.com include:us._netblocks.mimecast.com include:sendgrid.net include:_spf.salesforce.com include:nethope.org.spf.auto.dnssmarthost.net include:_spf.createsend.com ~all"
]
}