Junkfilter is spam filter software that's highly configurable and customizable for use with procmail.
Junkfilter uses multiple different filters to remove a wide range of spam, and can be customized on either a per-user or system-wide basis. If your inbox is constantly filling up with unsolicited commercial email (UCE), this system provides a way to filter out 90% of those annoying messages.
Note that Junkfilter is designed specifically for Procmail, so you'll need to ensure that Procmail is properly installed on your system before you can use Junkfilter effectively. If you need help with Procmail installation, consult the product documentation or FAQ.
To get started with Junkfilter, it's recommended that you make a directory called ".procmail" in your home directory and create a symbolic link from this directory to your ".procmailrc" file. This will allow you to set the PMDIR equal to the directory you've created, and will make it easy to access Junkfilter files from your Procmail setup. Finally, you'll need to set the $JFDIR parameter in both your shell configuration files and your Procmailrc file to point to the directory where you've located Junkfilter within your system.
Overall, Junkfilter provides a powerful and flexible solution for taming your inbox and controlling the flow of spam messages, so if you're using Unix and want an effective tool for managing your email, this system is definitely worth checking out.
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