Transitioning Maven Enforcer Plugin Rules from Fail to Warn for External Alerting

The goal is to configure Maven Enforcer Plugin rules to emit warnings instead of failing the build, while ensuring those warnings are captured as external notifications (e.g., Slack, email) so stakeholders are informed without adding noise to the build output.

The Enforcer plugin provides a <fail> flag to decide whether a rule violation stops the build, but it lacks a built‑in mechanism to route warnings to external systems. Teams must rely on CI tools to parse warning lines or develop custom Enforcer rules that push alerts, which introduces maintenance overhead and the risk of missed notifications if warnings are filtered or the CI environment lacks connectivity.

What is the recommended approach to convert Enforcer warnings into reliable external alerts while keeping the build successful? How can teams ensure that warnings are not overlooked by CI systems that may suppress or ignore log output? Is there a configuration pattern that allows selective escalation of specific rules to external alerts without modifying the Enforcer plugin itself?