Create a Quarantine Transport Rule for Hosted Quarantine

Log in to the Microsoft Exchange Admin Center.
Create the outbound and inbound connectors.
Skip this step if you have already created both the outbound and inbound connectors.
Create a Microsoft Exchange Outbound Connector
Create a Microsoft Exchange Inbound Connector
Select
Mail flow
Rules
Add a rule
Create a new rule
to create a new email transport rule.

Configure the quarantine transport rule conditions.
Enter a
Name
for the quarantine transport rule.
Add the quarantine email message header.
The
quarantine
header is added by the DLP cloud service when an email contains sensitive information that needs to be approved by your email administrator.
For
Apply this rule if
, select
The message headers...
.
Select
match these text patterns
.
Click
Enter Text
. When promoted, enter the following.
x-panw-action
Click
Save
to continue.
Click
Enter words
. When prompted, enter the following and
Add
:
quarantine
Select the word you added. Click
Save
to continue.

Specify the action Microsoft Exchange takes when an email header includes the quarantine header added by
Enterprise DLP
.
For

Do the following

, select

Redirect the message to

.

Select

hosted quarantine

.


Click
Next
to continue.
Configure the quarantine transport rule settings.
For the
Rule mode
, ensure
Enforce
is selected.
This setting is enabled by default when a new transport rule is created.
(
Optional
) Configure the rest of the quarantine transport rule settings as needed.
Click
Next
to continue.
Review the quarantine transport rule configuration and click
Finish.
Click
Done
when prompted that the quarantine transport rule was successfully created. You are redirected back to the Microsoft Exchange Rules page.
Modify the email transport rule priority as needed.
To change the priority of a transport rule, select the transport rule and
Move Up
or
Move Down
as needed.
A proper rule hierarchy is recommended to ensure emails successfully forward to
Enterprise DLP
.
The email transport rule should always be the highest priority rule relative to the other transport rules required for Email DLP.
Any email encryption rules not created as part of the email DLP configuration must be ordered below the transport rules created for Email DLP.
Enterprise DLP
cannot inspect encrypted emails.
There is no impact in regards to priority between the quarantine transport rules, block transport rule, encrypt transport rule, or any other transport rules that exist.
After
Enterprise DLP
inspects and returns the email back to Microsoft Exchange, the appropriate transport rule action will occur based on the email header.

An email administrator must review and approve or reject quarantined emails forwarded to the hosted quarantine mailbox.