Email Formats
{
"mx": [
"10 usb-smtp-inbound-1.mimecast.com.",
"10 usb-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 include:_spf.google.com include:amazonses.com include:sendgrid.net include:servers.mcsv.net include:usb._netblocks.mimecast.com include:spf2.selflender.com ~all"
]
}