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About

Email, collaboration, groupware, and content management - up and running in minutes, on your own hardware, or in the cloud. Citadel is easy, versatile, and powerful, thanks to its exclusive room-based architecture. No other platform seamlessly combines so many different features using this familiar and consistent metaphor. Citadel is 100% open source software using the GNU General Public License. It's not a crippled, cut-down version of some expensive "enterprise" edition. The software you download here is the very best available, and it's all free software.

About

The COVID-19 pandemic has changed the way we all live and work. The rise in remote working has resulted in a need for even greater communication, collaboration and flexibility. OpenText™ FirstClass® is a powerful collaboration solution that drives teamwork, improves communication, makes people and information easily accessible from any mobile device, and ensures team members are connected within the organization. FirstClass is a fully integrated solution that is cost-effective, flexible and easy to administer. It empowers individuals and teams to work together toward a common goal, with a shared sense of purpose and new ways to participate. Designed to support collaboration, FirstClass offers easy and secure communication, mobile access, personalization, integration with other applications, and safe, reliable archiving.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Supported
Mac Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Supported
iPad Supported
Android Supported
Chromebook Not Supported

Audience

Businesses needing a powerful Mail Server solution

Audience

Organizations that need a full-featured collaboration suite

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Not Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Citadel
www.citadel.org

Company Information

OpenText
Founded: 1991
Canada
www.opentext.com/what-we-do/products/specialty-technologies/firstclass

Alternatives

Citadel Team

Citadel Team

Thales SIX GTS

Alternatives

Courier

Courier

Double Precision, Inc.
MDaemon Email Server

MDaemon Email Server

MDaemon Technologies
Bamboo

Bamboo

Atlassian

Categories

Mail Servers Supported

Categories

Collaboration Supported
Mail Servers Supported

Collaboration Features

Brainstorming Not Supported
Calendar Management Supported
Chat / Messaging Supported
Contact Management Supported
Content Management Supported
Document Management Not Supported
Project Management Not Supported
Real Time Editing Supported
Task Management Not Supported
Version Control Not Supported
Video Conferencing Supported

Integrations

Docker Supported
Muraena Supported
Ubuntu Supported

Integrations

Docker Not Supported
Muraena Not Supported
Ubuntu Not Supported
Claim Citadel and update features and information
Claim Citadel and update features and information
Claim OpenText FirstClass and update features and information
Claim OpenText FirstClass and update features and information