OpenChange vs Polymail
A side-by-side look at OpenChange and Polymail. For an in-depth review of either product, follow the links below.
OpenChange
Office & Productivity
OpenChange is an open source implementation of Microsoft Exchange Server that allows Linux and UNIX servers to interoperate with Microsoft Exchange clients. It provides compatibility with Exchange protocols like MAPI, EMS, and OAB.
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Polymail
Social & Communications
Polymail is an email client app focused on privacy and security. It offers end-to-end encryption, screen blurring, read receipts control, and other features to protect user data and communications.
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