The previous post showed the steps necessary to enable DLP. This post describes the workflow to configure DLP. I needed DLP to relay outbound messages to a specific mail relay based on header information.

At first I create a DLP rule to define the matching conditions. I match specific header information, which is added to a message by the internal MS Exchange server.

You can match multiple conditions, like subject, recipient, sender, body or attachments and you can also use regular expressions. This makes it very powerful to match specific or multiple characteristics from a message. You can also add exceptions to the DLP rule.

The next steps involves creating a DLP Profile. The DLP profile sets the action, when the DLP rule is matched. You need to specify a default action and you can overwrite is by defining specific actions for specific DLP rules. I create an action to deliver mail to an alternate host. The action can be configured from the DLP profile pane or you can configure the action under the Content Profile Actions. I needed to configure an outbound action, which needs to be created under the Content Profile Action.

I use the above action as default in the DLP Profile and set my scan rule to use the default action.

The DLP profile can be assigned to an IP Policy or Recipient Policy. I need to relay message in the outbound direction, so I create an Outbound Recipient Policy and assign the DLP profile.

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René Jorissen

Co-owner and Solution Specialist at 4IP Solutions

René Jorissen works as Solution Specialist for 4IP in the Netherlands. Network Infrastructures are the primary focus. René works with equipment of multiple vendors, like Cisco, Aruba Networks, FortiNet, HP Networking, Juniper Networks, RSA SecurID, AeroHive, Microsoft and many more. René is Aruba Certified Edge Expert (ACEX #26), Aruba Certified Mobility Expert (ACMX #438), Aruba Certified ClearPass Expert (ACCX #725), Aruba Certified Design Expert (ACDX #760), CCNP R&S, FCNSP and Certified Ethical Hacker (CEF) certified. You can follow René on Twitter and LinkedIn.

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