Email Formats

{
  "mx": [
    "10 usb-smtp-inbound-1.mimecast.com.",
    "10 usb-smtp-inbound-2.mimecast.com."
  ],
  "spf": [
    "v=spf1 include:spf.constantcontact.com include:us._netblocks.mimecast.com include:usb._netblocks.mimecast.com include:mktomail.com ip4:159.183.66.35/32 ip4:24.196.79.144/28 ~all"
  ]
}