Email Formats
{
"mx": [
"10 usb-smtp-inbound-1.mimecast.com.",
"10 usb-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 include:usb._netblocks.mimecast.com include:_spf.salesforce.com include:sent-via.netsuite.com include:mktomail.com include:mail.thoughtindustries.com include:_spf.psm.knowbe4.com ip4:12.133.138.114 ip4:204.246.130.15 ip4:209.170.209.79 ~all"
]
}