Email Protective Marking Standard for the Australian Government
Email Protective Marking Standard for the Australian Government
Email Protective Marking Standard for the Australian Government
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2. The standard2.1 ScopeThis <strong>Standard</strong> defines <strong>the</strong> <strong>for</strong>mat of protective markings in Internet email message(RFC2822) headers.This <strong>Standard</strong> is mandatory <strong>for</strong> <strong>Australian</strong> <strong>Government</strong> agencies as defined in <strong>the</strong> PSPFand optional <strong>for</strong> non-government agencies. Specific compliance requirements <strong>for</strong> agenciesare outlined in <strong>the</strong> <strong>Australian</strong> <strong>Government</strong> In<strong>for</strong>mation Security Manual (ISM) [7].2.2 Out of ScopeThe following topics are not addressed by this <strong>Standard</strong>:• How a sending or receiving email agent should behave when creating or receivingan email message. This behaviour is defined in <strong>the</strong> ISM.• The protective measures that need to be applied to an email message based on itsprotective marking. The PSPF and <strong>the</strong> ISM define <strong>the</strong> protective measures to betaken based on <strong>the</strong> protective marking of <strong>the</strong> in<strong>for</strong>mation.• The <strong>for</strong>mat of <strong>the</strong> protective marking when <strong>the</strong> marking is part of <strong>the</strong> body of anemail message.• The <strong>for</strong>mat of <strong>the</strong> protective marking when <strong>the</strong> marking is a digitally signedattribute of <strong>the</strong> message.• Differentiation between protective markings <strong>for</strong> whole messages or differentprotective markings <strong>for</strong> parts or components of messages, including attachmentsand paragraphs. The protective marking is used to indicate <strong>the</strong> highest protectionrequirements of any part or component of <strong>the</strong> email message.2.3 VersionThe version number <strong>for</strong> this definition of <strong>the</strong> <strong>Standard</strong> is:2012.378