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Re:Open Sourcers Race to Build Better Versions of Slack by scrollaway on Wednesday March 16, 2016 @08:21PM (#11301763)
What are the advantages of OpenFire over ejabberd/prosody?
Re:Open Sourcers Race to Build Better Versions of Slack by leonroy on Thursday March 17, 2016 @08:08AM (#11303841)
Super easy to use, nice admin pages, great plugin architecture for 3rd party developers to extend its functionality. Means there's a LOT of cool plugins which add video, screen sharing, chat archiving, etc.

Deal breaker against it (depending on your use case) is lack of support for multiple domains. It can only handle one per deployment.

It also does need at least 512MB RAM which rules it out on embedded devices.