Failed to release an email using Flex Response with SMG Brightmail

Products

• Data Loss Prevention Network Prevent for Email
• Data Loss Prevention Enforce
• Messaging Gateway

Issue/Introduction

When you open an incident and release the email using a Flex Response rule you got an error:

FlexResponse Action Failed
[Email Quarantine Connect Approve Action] failed with message: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

The same error is showed in Tomcat log.

Resolution

The error is due to the wrong certificate configured in Brightmail.

Please login to the Brightmail Control  Center and verify the HTTPS certificate. See screenshot attached.