                                                       Delivery Status Notification (DSN) Types

   Created
           2002-11-07

   Last Updated
           2008-09-08

   This registry is also available in XML and plain text formats.

   Registries included below

     * Address Types
     * Diagnostic Types
     * MTA Name Types

Address Types

   Reference
           [RFC3461][RFC3464]

   Registration Procedures
           RFC Required

   address-type    Description     Reference
   rfc822       Internet Mail      [RFC3461]
   x400         X.400 Mail         [RFC2156]
   UTF-8        UTF-8 mail address [RFC5337]

Diagnostic Types

   Reference
           [RFC3461][RFC3464]

   Registration Procedures
           RFC Required

   diagnostic-type  Description           Reference
   smtp            Internet Mail [RFC3461][RFC3464][RFC5337]

MTA Name Types

   Reference
           [RFC3461][RFC3464]

   Registration Procedures
           RFC Required

   MTA-name-type  Description  Reference
   dsn           Internet Mail [RFC3461]
