Software Alternatives & Reviews

OpenChange VS Citadel

Compare OpenChange VS Citadel and see what are their differences

OpenChange logo OpenChange

OpenChange aims to provide a portable Open Source implementation of Microsoft Exchange Server and...

Citadel logo Citadel

Is a collaboration suite (messaging and groupware).
  • OpenChange Landing page
    Landing page //
    2023-08-02
  • Citadel Landing page
    Landing page //
    2021-10-10

OpenChange videos

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Citadel videos

Citadel: Forged with Fire Review (Rogue Gaming)

More videos:

  • Review - The Citadel Review - Waifustein 3D
  • Review - CITADEL FORGED WITH FIRE Worth Playing? Full Release RPG Multiplayer Game PS4 Xb1 PC

Category Popularity

0-100% (relative to OpenChange and Citadel)
SMTP Server
100 100%
0% 0
Email
45 45%
55% 55
Data Dashboard
0 0%
100% 100
Self-hosted Email
100 100%
0% 0

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare OpenChange and Citadel

OpenChange Reviews

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Citadel Reviews

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 Active Directory.
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 (forums), mailing list server, instant messaging, wiki...

What are some alternatives?

When comparing OpenChange and Citadel, you can also consider the following products

Zimbra - 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.

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

Roundcube - Web-based IMAP email client

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

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

Symantec Critical System Protection - 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.