Email

• Introduction
  • Target namespace
  • Declared namespaces
• Schema
  • Diagram
  • XML Schema Definition
• Example

Introduction

This is a schema to encapsulate email document files. An email instance represents an Internet-like mail message as recorded by a receiving email system. The specification consists of a description of the XML schema and an example of an instance of the schema.

Target namespace

http://preservation.naa.gov.au/email/1.0

Declared namespaces

Prefix Namespace

xsd
http://www.w3.org/2001/XMLSchema

email
http://preservation.naa.gov.au/email/1.0

Schema

The following sections describe the email XML schema.

Diagram

XML Schema Definition

<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"      
           xmlns:email="http://preservation.naa.gov.au/email/1.0"          
           targetNamespace="http://preservation.naa.gov.au/email/1.0"
           version="1.0">
<xsd:annotation>
 <xsd:documentation xml:lang="en">
  email. A schema to represent networked messages 
  that conform to the principles of Internet email as 
  codified by RFC 2822 and related Internet Engineering Task 
  Force (IETF) Request For Comments documents. 
  Developed by the National Archives of Australia. 
  Copyright 2010 Commonwealth of Australia.
 </xsd:documentation>
</xsd:annotation>
<xsd:element name="email"> 
<xsd:complexType>
 <xsd:sequence>
  <xsd:element name="headers">
   <xsd:complexType>
    <xsd:sequence>
     <xsd:element name="header" minOccurs="0" maxOccurs="unbounded">
      <xsd:complexType>
       <xsd:attribute name="name" type="xsd:string" use="optional" />
      </xsd:complexType>
     </xsd:element>
    </xsd:sequence>
   </xsd:complexType>
  </xsd:element>
  <xsd:element name="parts">
   <xsd:complexType>
    <xsd:sequence>
     <xsd:element name="part" minOccurs="1" maxOccurs="unbounded">
      <xsd:complexType>
       <xsd:sequence>
        <xsd:any namespace="##any" processContents="lax" minOccurs="0" maxOccurs="unbounded" />
       </xsd:sequence>
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
      </xsd:complexType>
     </xsd:element>
    </xsd:sequence>
   </xsd:complexType>
  </xsd:element>
 </xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:schema>

Example

The following is an instance of the email schema.

<email:email xmlns:email="http://preservation.naa.gov.au/email/1.0">
<email:headers>
<email:header email:name="From">jack.rizzo@example.gov.au</email:header>
<email:header email:name="Subject">RE: Xena</email:header>
<email:header email:name="To">frank.tors@example.gov.au</email:header>
<email:header email:name="CC">rosine.nikos@example.gov.au</email:header>
<email:header email:name="Date">Thu, 06 Nov 2003 07:19:16 </email:header>
<email:header email:name="MIME-Version">1.0</email:header>
<email:header email:name="Content-type">multipart/mixed;
boundary="--boundary-LibPST-iamunique-0_-_-"</email:header>
</email:headers>
<email:parts>
<email:part>
 <xena>
 <meta_data>
 <meta_data_wrapper_name>Default Package Wrapper</meta_data_wrapper_name>
 <normaliser_name>au.gov.naa.digipres.xena.plugin.plaintext.PlainTextToXenaPlainTextNormaliser</normaliser_name>
 <input_source_uri>file:/D02_11753.MBX/D02_11753.MBX</input_source_uri>
 </meta_data><content>
 <plaintext:plaintext xmlns:plaintext="http://preservation.naa.gov.au/plaintext/1.0">
    <plaintext:line xml:space="preserve"/>
    <plaintext:line xml:space="preserve">Xena standards for Xml Electronic </plaintext:line>
    <plaintext:line xml:space="preserve">Normalising of Archives. Xena transforms</plaintext:line>
    <plaintext:line xml:space="preserve">digital records into open, fully documented</plaintext:line>
    <plaintext:line xml:space="preserve">formats for long-term digital preservation.</plaintext:line>
    <plaintext:line xml:space="preserve">This is useful for many situations, but especially</plaintext:line>
    <plaintext:line xml:space="preserve">for government archival institutions.</plaintext:line>
   </plainext:plaintext>
 </content>
 </xena>
</email:part>
</email:parts>
</email:email>