# Cyren Anti-Spam

> Cyren Anti-Spam 5.5-stable documentation

## Pages

- [Cyren Anti-Spam](index.html.md): This is the documentation for the Cyren Anti-Spam add-on option.
- [Installation](install.html.md): Make sure you have followed the instructions in our manual to add our package repository.
- [Upgrade](upgrade.html.md): In order to upgrade the package, install the new package over the previous installed one (see the installation chapter).
- [Configuration](config.html.md): ctasd loads the non-reloadable configuration from /etc/ctasd/ctasd.conf.
- [Integration](integration.html.md): In order to integrate this program with our MTA, see our client library here.

## Optional

- [llms-full.txt](llms-full.txt): Complete documentation in a single file.