Docomotion - Docomotion offers tools for designing and generating all types of transactional and operational business documents.
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.
AODocs - AODocs is the document management solution recommended for G Suite. Secure your documents, structure your content, & automate your processes
iRedMail - A fully fledged, free email server solution, an open source project (GPL v2).
OpenKM - OpenKM is an easy to use powerful version control system that enables businesses efficiently and systematically capture, store, secure, manage, maintain and distribute corporate information assets with the goal of facilitating knowledge creation, op…
mailcow - An open source mailserver suite.