Citadel
Is a collaboration suite (messaging and groupware).
18 Alternatives To Citadel
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.
Armis
The leading enterprise-class agentless device security platform to address the new threat landscape of unmanaged and IoT devices.
Broadkey
BroadKey: Key Provisioning Software IP for IoT security. Hardware Root of Trust via unclonable device identities. Deploy any time in device lifecycle.
Cyberbit
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.
Google Cloud IoT Core
A fully managed service to easily and securely connect, manage, and ingest data from globally dispersed devices
IoT Guardian
IoT Security
Kolab Community
Kolab Groupware is a secure, scalable, reliable, flexible, full-featured collaboration suite.
LynxOS RTOS
IoT Security
Microsoft Exchange Server
Microsoft Exchange Server is a messaging and collaborative software product developed by Microsoft.
Mocana
Mocana’s comprehensive cybersecurity solutions are trusted to protect more than 100 million ICS and IoT devices.
P2Scan Power Analytics
IoT Security
Roundcube
Web-based IMAP email client
SOGo
SOGo is groupware server with a focus on scalability and open standards.
Spartan
Great clipboard with extras. See it in action at the get it here URL.
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.
Zimbra Collaboration Suite
Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more.
iRedMail
A fully fledged, free email server solution, an open source project (GPL v2).
ioTrust IoT Security
Entrust Datacard IoT Security products ensure a Trusted Internet of Things by establishing a securely connected ecosystem.