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Is everything at mailbox.org open source?
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Curious to know what parts are open source (client, server) and where that code is viewable.
The same question 
Mailsystems (Postfix, Dovecot, Anti-Spam-Engines) are common known open source software, available on every linux distribution.
Webmail-System/*DAV-Server are also open source software, available from Open Xchange.
Internal backend infrastructure ("Glue", internal API-Server, backup scripts, maintenance scripts, anti abuse detection systems, process logic) are developed by us and not open source.
Mailsystems (Postfix, Dovecot, Anti-Spam-Engines) are common known open source software, available on every linux distribution.
Webmail-System/*DAV-Server are also open source software, available from Open Xchange.
Internal backend infrastructure ("Glue", internal API-Server, backup scripts, maintenance scripts, anti abuse detection systems, process logic) are developed by us and not open source.
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