# Third-party notices

This document lists separately licensed components shipped with this repository.

## SnappyMail plugin: list-unsubscribe-header

| Field | Value |
|--------|--------|
| **Component** | SnappyMail plugin `list-unsubscribe-header` |
| **Bundled path** | `install/snappymail/plugins/list-unsubscribe-header/index.php` |
| **Install / enable** | `plogical/snappymail_plugin_utilities.py` (called from `install/install.py` and `plogical/upgrade.py` after the upstream SnappyMail CyberPanel installer PHP step) |
| **License** | **GNU Affero General Public License v3.0** (AGPL-3.0) |
| **Upstream source** | https://github.com/master3395/snappymail-list-unsubscribe-header |

Bundling AGPL-3.0 code imposes AGPL obligations on distribution of that component (for example, making corresponding source available to recipients as required by the license). See the upstream repository `LICENSE` file for the full text and terms.

CyberPanel as a whole is licensed under **GPL-3.0**; see the repository root `LICENSE`. This notice does not change the license of CyberPanel’s own code.