Does CDS for Email or Network Prevent for Email support DKIM/DMARC/ARC?

Products

• Data Loss Prevention Cloud Service for Email
• Data Loss Prevention Network Email
• Data Loss Prevention Network Monitor and Prevent for Email
• Data Loss Prevention Network Monitor and Prevent for Email and Web
• Data Loss Prevention Network Prevent for Email

Issue/Introduction

Does Cloud Detection Service for Email or Network Prevent for Email support DKIM/DMARC/ARC?

Environment

All supported releases of DLP Cloud Service for Email and Network Prevent for Email (aka NPE)

Resolution

Both CDS for Email and NPE are not MTAs but SMTP proxies.

DLP cannot apply DKIM/DMARC policies or validate ARC. DKIM should be unchanged for an e-mail when passed through DLP.