Australian Information Security Manual

Guidelines for email

Australian Information Security Manual ISM-0565: Email servers are configured to block, log and report emails with inappropriate protective

Email servers are configured to block, log and report emails with inappropriate protective markings.

Other controls in Guidelines for email

ISM-0264 An email usage policy is developed, implemented and maintained.
ISM-0267 Access to non-approved webmail services is blocked.
ISM-0269 Emails containing Australian Eyes Only, Australian Government Access Only or Releasable To
ISM-0270 Protective markings are applied to emails and reflect the highest sensitivity or classific
ISM-0271 Protective marking tools do not automatically insert protective markings into emails.
ISM-0272 Protective marking tools do not allow users to select protective markings that a system ha
ISM-0567 Email servers only relay emails destined for or originating from their domains (including
ISM-0569 Emails are routed via centralised email gateways.

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