Label incoming PROTECTED email
This section describes the configuration of auto-labeling within Microsoft Purview associated with systems built according to guidance in ASD's Blueprint for Secure Cloud.
Estimated reading time: 2 minutes
Instruction
The below tables outline the as built configuration for ASD’s Blueprint for Secure Cloud (the Blueprint) for the Microsoft Purview portal at the following URL:
https://compliance.microsoft.com/informationprotection/autolabeling
The settings described on these pages provide a baseline implementation for a system configured using the Blueprint. Any implementation implied by these pages should not be considered as prescriptive as to how an organisation must scope, build, document, or assess a system.
Implementation of the guidance provided by the Blueprint will differ depending on an organisation’s operating context and organisational culture. Organisations should implement the Blueprint in alignment with their existing change management, business processes and frameworks.
Placeholders such as <ORGANISATION.GOV.AU>, <BLUEPRINT.GOV.AU> and <TENANT-NAME> should be replaced with the relevant details as required.
Name
| Item | Value |
|---|---|
| Name | Label Incoming PROTECTED Email |
| Description | Applies the PROTECTED label to incoming emails based on either the header or subject |
Admin units
| Item | Value |
|---|---|
| Admin units | Full directory |
Locations
| Item | Value |
|---|---|
| Exchange email | All users and groups |
| SharePoint sites | |
| OneDrive accounts |
Rules for Exchange email
Check for PROTECTED x-header
| Item | Value |
|---|---|
| Name | Check for PROTECTED x-header |
| Description |
Conditions
| Item | Value |
|---|---|
| Header matches pattern | Header name: X-Protective-MarkingRegular expression: (?im)(SEC=PROTECTED)(?!\u002C\s*[ACCESS|CAVEAT]) |
Check for PROTECTED subject
| Item | Value |
|---|---|
| Name | Check for PROTECTED subject |
| Description |
Conditions
| Item | Value |
|---|---|
| Subject matches pattern | Regular expression: (?im)(SEC=PROTECTED)(?!\u002C\s[ACCESS|CAVEAT]) |
Label
| Item | Value |
|---|---|
| Label to auto-apply | PROTECTED/PROTECTED |
Additional settings for email
| Item | Value |
|---|---|
| Automatically replace existing labels that have the same or lower priority | Not checked |
Policy mode
| Item | Value |
|---|---|
| Decide if you want to test out the policy now or later | Run policy in simulation mode |
| Automatically turn on policy if not modified after 7 days in simulation | Not checked |
Note
Organisations enabling this auto-label policy should first test the included rules before turning it on.
Related information
Security & Governance
- None identified
Design
- None identified
Configuration
- None identified
References
- None identified