---
title: Pyzor
url: 'https://docs.danami.com/warden/user-guide/antispam-plugins/pyzor'
markdown: 'https://docs.danami.com/warden/user-guide/antispam-plugins/pyzor.md'
date: '2026-09-25'
description: 'Pyzor requires that port 24441 UDP IN / OUT be opened if you are using a firewall. Pyzor is a collaborative, networked system to detect and block spam using identifying digests of messages. See http://pyzor.readthedocs.io/ for more information about Pyzor. Rules Area Rule name Descript…'
taxonomy:
  category:
    - docs
  tag:
    - pyzor
---

[](#)  [ Basics ](https://docs.danami.com/warden/)     [ User Guide ](https://docs.danami.com/warden/user-guide)     [ Anti-spam Plugins ](https://docs.danami.com/warden/user-guide/antispam-plugins)      Pyzor    

# Pyzor

> > > > > Pyzor requires that port 24441 UDP IN / OUT be opened if you are using a firewall.

Pyzor is a collaborative, networked system to detect and block spam using identifying digests of messages. See <http://pyzor.readthedocs.io/> for more information about Pyzor.

## Rules

| Area | Rule name | Description | Default scores |
|---|---|---|---|
| full | `PYZOR_CHECK` | Listed in Pyzor (<http://pyzor.sf.net/>) | 0 1.985 0 1.392 |

## Related Pages

- [Pyzor Settings](https://docs.danami.com/warden/settings/antispam/plugin-settings/pyzor "Pyzor Settings")

 [](https://docs.danami.com/warden/command-line-interface/antispam/antispam-plugin-pyzor)

---

## Navigation

- Parent: [Anti-spam Plugins](https://docs.danami.com/warden/user-guide/antispam-plugins.md)
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