Label incoming OFFICIAL: Sensitive Legal Privilege email
This section describes the configuration of auto-labeling policies 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://purview.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.
Turning on auto-labeling policies
Auto-labeling polices are in simulation mode by default and must be individually turned on post-configuration.
Name
Name your auto-labeling policy
| Item | Value |
|---|---|
| Name | Label incoming OFFICIAL: Sensitive Legal Privilege email |
| Description | Applies the OFFICIAL: Sensitive Legal Privilege label to incoming emails based on either the header or the subject |
Label
Choose a label to auto-apply
| Item | Value |
|---|---|
| Label to auto-apply | OFFICIAL Sensitive (group)/Legal Privilege |
Admin units
Assign admin units
| Item | Value |
|---|---|
| Admin units | Full directory |
Locations
Choose locations where you want to apply the label
| Item | Value |
|---|---|
| Exchange email | All users and groups |
| SharePoint sites | Not checked |
| OneDrive accounts | Not checked |
Policy rules
Set up common or advanced rules
| Item | Value |
|---|---|
| Advanced rules | Selected |
Exchange rules
| Item | Value |
|---|---|
| Name | Check for OFFICIAL: Sensitive Legal Privilege X-header |
| Description | None |
| Conditions | Header matches patterns |
| Header name | X-Protective-Marking |
| Regular expression | SEC=OFFICIAL:Sensitive(?!, CAVEAT=).*, ACCESS=Legal-Privilege |
| Item | Value |
|---|---|
| Name | Check for OFFICIAL: Sensitive Legal Privilege subject |
| Description | None |
| Conditions | Subject matches patterns |
| Regular expression | \[SEC=OFFICIAL:Sensitive(?!, CAVEAT=).*, ACCESS=Legal-Privilege\] |
Additional settings for email
| Item | Value |
|---|---|
| Automatically replace existing labels that have the same or lower priority | 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 |
Related information
Security & Governance
- None identified
Design
Configuration
- None identified