An overview of the Citadel BBS

Citadel is a free, compact bulletin board system that integrates email, calendar, address book, and forum functions for administrators and hobbyists that need a groupware solution for a small organization.

By Rubén Llorente

Updated Oct 2, 2026 3:46 PM / Published May 23, 2020 3:00 AM 10 min read

Illustration of locked safe — Lead Image © braverabbit; 123RF.com

This content is for paying members only

Already have an account? Sign in

Add ADMIN IT Infrastructure & Operations on Google

Rubén Llorente

Rubén is an OpenBSD enthusiast and a mechanical engineer whose job is to ensure that the security measures of the IT infrastructure of a small clinic are both law compliant and safe.