Contributor challenge: Solutions for IDN & Email Validation in WordPress

Contributor challenge: Solutions for IDN & Email Validation in WordPress

After a full day of testing WordPress Core and popular plugins for domain and email validation issues, we regroup to analyze what we’ve discovered.

In this collaborative session, we will:

  • Review the documented findings
  • Identify patterns across plugins and Core
  • Draft concrete solution approaches
  • Discuss best practices for proper IDN & UTF-8 validation
  • Outline next steps (Core tickets, plugin PRs, patches, documentation)

The goal is not just to list problems — but to leave WordCamp with:

  • Actionable recommendations
  • Clear technical guidance
  • A publication-ready summary of findings
  • A roadmap for improving validation across the ecosystem

Plugin developers are especially encouraged to join this session to discuss fixes directly and align on implementation strategies.

Let’s move from bug reports to real improvements.