Only the latest release of Lean SMTP receives security updates.
| Version | Supported |
|---|---|
| latest | ✅ |
| older | ❌ |
Please do not report security vulnerabilities through public GitHub issues.
Report privately through GitHub's private vulnerability reporting — open the repository's Security tab and click Report a vulnerability.
Include as much of the following as you can:
- A description of the vulnerability and its potential impact
- Steps to reproduce or a proof-of-concept
- The affected version and any relevant configuration (transport, PHP/WordPress version)
- Any suggested mitigations
You should receive a response within 72 hours. We will keep you informed as we work toward a fix and will credit you in the release notes unless you prefer to remain anonymous.