We performed a comparison between Microsoft Exchange Online and Zarafa based on real PeerSpot user reviews.
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Microsoft Exchange Online is ranked 2nd in Email Applications with 85 reviews while Zarafa is ranked 16th in Email Applications. Microsoft Exchange Online is rated 8.6, while Zarafa is rated 8.0. The top reviewer of Microsoft Exchange Online writes "Helps reduced IT operations, scalable, and simple setup". 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". Microsoft Exchange Online is most compared with Google Workspace, Amazon WorkMail, ProtonMail, Zoho Mail and Zimbra Collaboration, whereas Zarafa is most compared with Zimbra Collaboration and Open-Xchange.
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