Open-Xchange is ranked 11th in Email Applications while Zarafa is ranked 15th in Email Applications. Open-Xchange is rated 0.0, while Zarafa is rated 0.0. On the other hand, Open-Xchange is most compared with Microsoft Exchange, Zimbra Collaboration, G Suite Enterprise, Microsoft Exchange Online and Kerio Connect, whereas Zarafa is most compared with Zimbra Collaboration.
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