Open Source Email Clients
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Email Clients
View 72 business solutionsBrowse free open source Email Clients and projects below. Use the toggles on the left to filter open source Email Clients by OS, license, language, programming language, and project status.
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Gen AI apps are built with MongoDB AtlasMongoDB Atlas is the developer-friendly database used to build, scale, and run gen AI and LLM-powered apps—without needing a separate vector database. Atlas offers built-in vector search, global availability across 115+ regions, and flexible document modeling. Start building AI apps faster, all in one place.
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Comet Backup - Fast, Secure Backup Software for MSPsComet is a flexible backup platform, giving you total control over your backup environment and storage destinations.
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K-9 Mail
Open Source Email App for Android
K-9 Mail is an advanced, open-source email client for Android that's focused on making it easy to chew through large volumes of email. It's designed to be easy to use by both novice and power users, with plenty of useful features. It has IMAP push email support, support for multiple accounts, support for POP3 and Exchange 2003/2007 (with WebDAV), flagging, filing, signatures and more! K-9 Mail also offers a light and dark theme, keyboard shortcuts and emoji support. Like man's best friend, K-9 Mail is an email client you can depend on, and will surely be your best friend when it comes to handling your emails! -
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Extensible web mail client, allowing UI to be redefined according target format (modern Web browser, mobile device ...).
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Webmail Mobile é um cliente de e-mails desenvolvido em JSP/Servlet. Totalmente projetado com design e funcionalidades voltados para smartphones e dispositivos móveis.
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