Open Source Email Clients Software
Email Clients provide a central interface for reading, composing, and organizing electronic messages across multiple accounts. These tools manage the synchronization of mail, calendars, and contact lists using protocols like IMAP and JMAP. This type of software serves individuals and organizations that require a private way to handle correspondence. Self-hosting these apps ensures that message archives and contact details remain on private hardware. This approach removes reliance on proprietary mail providers and keeps sensitive communication history away from external corporate servers.
This page lists 6 open source tools in the Email Clients category. The most popular are Mailspring, Tuta and Roundcube Webmail. Most use the GPL-3.0 or AGPL-3.0 license, and 4 offer an official Docker image.
Mailspring
A cross platform email client with a local sync engine for managing multiple mail accounts.
Tuta
An encrypted email, calendar, and contacts service providing end to end encryption across multiple devices and platforms.
Roundcube Webmail
A browser based multilingual IMAP client providing full email functionality with an application like user interface.
SnappyMail
A lightweight and fast web-based email client designed for privacy and modern browser performance.
Cypht
A webmail aggregator that combines multiple email accounts and news feeds into a single unified view.
Twake Mail
A multi-platform email client using the JMAP protocol for efficient synchronization across mobile and web interfaces.
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