We performed a comparison between ProtonMail and Zarafa based on real PeerSpot user reviews.
Find out what your peers are saying about Google, Microsoft, Zimbra and others in Email Applications.ProtonMail is ranked 11th in Email Applications while Zarafa is ranked 16th in Email Applications. ProtonMail is rated 0.0, while Zarafa is rated 8.0. 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". ProtonMail is most compared with Google Workspace, Microsoft Exchange Online, Microsoft Exchange, Zoho Mail and Superhuman, whereas Zarafa is most compared with Zimbra Collaboration and Open-Xchange.
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