The installation process will run the configuration wizard as shown below. You can install it with all the components by running the following command: apt-get install citadel-mta citadel-suite -y apt-get update -yīy default, Citadel groupware is available in the Ubuntu 16.04 default repository. Once you are logged into your Ubuntu 16.04 instance, run the following command to update your base system with the latest available packages.

Connect to your ECS instance and log in as the root user. Create a new ECS instance, choosing Ubuntu 16.04 as the operating system with at least 2GB RAM.

A Root password is set up on the server.įirst, log in to your Alibaba Cloud ECS Console.

RequirementsĪ fresh Alibaba Cloud Ubuntu 16.04 instance with minimum 2GB of RAM. I am going to explain how to install and configure Citadel Mail Server on an Alibaba Cloud Elastic Compute Service (ECS) instance with Ubuntu 16.04. Wiki, forums and blog engines.Īccessible through the Web browser, telnet/SSH, local client software. Very strong support for “public folders” and message forums.Īuthenticated SMTP for remote email submission.Įmail, calendaring, address books, bulletin boards, instant messaging, and more. Integrated server-side mail sorting and filtering. High-performance, multiprotocol, multithreaded server engine. Group calendaring and scheduling (WebDAV, GroupDAV, and Kolab-1 compatible). Supports various protocols such as SMTP, IMAP, Sieve, POP3, GroupDAV, and XMPP. Citadel provides automated installation process and versatile deployment options that allow a system administrator to scale the application across multiple servers. Citadel is a lightweight and extremely versatile collaboration suite that provides numerous front ends to present to users, such as a text-based interface, an AJAX-style web interface, and many popular PIM clients using SMTP/POP/IMAP.

It is written in the C language and provides a user-friendly web interface to manage your server. It supports all operating systems including, Linux, Mac OS X, Solaris, and Unix. Citadel is a free, open source, web-based email and groupware solution that can be used to set up and manage an email server, calendars, address books, instant messaging, mailing lists, and much more.

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