We performed a comparison between IceWarp and Zarafa based on real PeerSpot user reviews.
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IceWarp is ranked 6th in Email Applications with 15 reviews while Zarafa is ranked 16th in Email Applications. IceWarp is rated 8.6, while Zarafa is rated 8.0. The top reviewer of IceWarp writes "A tool that is scalable and can accommodate a large number of users but needs to improve the support it provides to its users ". On the other hand, the top reviewer of Zarafa writes "Our customers are able to use this groupware solution to connect to Active Directory and OpenLDAP, although Postgres support would be an improvement". IceWarp is most compared with Google Workspace, Zimbra Collaboration, Microsoft Exchange, Zoho Mail and KerioConnect, whereas Zarafa is most compared with Zimbra Collaboration.
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