Software Alternatives & Reviews


Is a collaboration suite (messaging and groupware).

Citadel Alternatives

The best Citadel alternatives based on verified products, community votes, reviews and other factors.
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  1. 18

    Manage the security of your fleet. With AWS IoT Device Defender, you can audit and monitor device configurations. Get started today.

  2. 17

    Cyberbit provides the most widely used Cyber Range training and simulation platform, as well as SOAR, ICS Security and EDR for IT/OT detection and response.

  3. Powerful SaaS integration toolkit for SaaS developers - create, amplify, manage and publish native integrations from within your app.

    Try for free paid Free Trial

  4. 19

    Symantec Critical System Protection is a flexible and compact behavioral security engine built with application whitelisting infused with anti-exploits for managed or standalone IoT devices.

  5. 17

    Help protect your connected IoT devices, such as MCUs and crossover modules, development kits, and guardian devices, with Azure Sphere.

  6. 17

    BroadKey: Key Provisioning Software IP for IoT security. Hardware Root of Trust via unclonable device identities. Deploy any time in device lifecycle.

  7. 16

    Mocana’s comprehensive cybersecurity solutions are trusted to protect more than 100 million ICS and IoT devices.

  8. 15

    Zimbra is trusted by over 500 million users to increase productivity with a complete set of collaboration tools while maintaining total control over security and privacy.

  9. 14

    A fully fledged, free email server solution, an open source project (GPL v2).

  10. 12

    Entrust Datacard IoT Security products ensure a Trusted Internet of Things by establishing a securely connected ecosystem.

  11. 15

    Power data automation, authenticity, and action in the Internet of Everything with Sixgill. Learn more about our IoT application development services.

  12. 16

    Microsoft Exchange Server is a messaging and collaborative software product developed by Microsoft.

  13. 16

    The leading enterprise-class agentless device security platform to address the new threat landscape of unmanaged and IoT devices.

  14. 14
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Citadel Reviews

External sources with reviews and comparisons of Citadel

15 Best iRedMail Alternatives 2021
Citadel has many of the amazing features that people typically flock to iRedMail for such as scheduling/calendaring support, note-taking, file storage, and integrated antispam filtering & server-side mail sorting. It also offers multi-domain support, server-to-server replication, TLS/SSL protocol encryption, and Microsoft...
5 Awesome Open Source Groupware Software Suite
Citadel is a free and open source collaboration suite software. It supports protocol such as SMTP, IMAP, Sieve, POP3, GroupDAV, and XMPP. Also includes OpenSSL encryption for additional security. You can run it on your hardware or in the cloud. Feature includes email, calendar/scheduling, address books, bulletin boards...
Read all Citadel reviews →

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Author: | Publisher: SaaSHub
Categories: Data Dashboard, Monitoring Tools, IoT Platform