Citadel
Is a collaboration suite (messaging and groupware).
Citadel Alternatives [Page 4]
The best Citadel alternatives based on verified products, community votes, reviews and other factors.
Latest update:
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/rainloop-alternatives
RainLoop is a web based email client.
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/mail-in-a-box-alternatives
Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software and also includes contacts and calendar synchronization.
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Visit website
The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder.
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/egroupware-alternatives
EGroupware is free open source groupware software intended for businesses from small to enterprises.
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/exim-alternatives
Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.
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/nextcloud-hub-alternatives
On-premises, enterprise collaboration solution for documents, emails, calendars and more.
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/azure-iot-hub-alternatives
Manage billions of IoT devices with Azure IoT Hub, a cloud platform that lets you easily connect, monitor, provision, and configure IoT devices.
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/modoboa-alternatives
Modoboa is a mail hosting and management platform including a modern and simplified Web User Interface.
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/salesforce-iot-cloud-alternatives
Modernize your field service management software to deliver better onsite support and keep employees and customers informed every step of the way.
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/zentyal-alternatives
Linux directory, domain, mail, gateway and infrastructure server for SMBs.
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/mode-alternatives
A complete analytical toolkit, free forever
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/thingspeak-alternatives
Open source data platform for the Internet of Things. ThingSpeak Features
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/google-workspace-alternatives
Google's encompassing suite of cloud-based business apps.
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/bastille-alternatives
Bastille provides comprehensive visibility and threat detection for IoT devices.
