Open-source browser-based email interfaces that allow you to manage your personal inbox on private servers.
Roundcube is an open-source, self-hosted webmail client designed for reading, composing, and organizing emails stored on remote servers using IMAP and SMTP protocols. It provides a browser-based interface that allows users to manage their mailboxes and sender identities through a secure communication platform. The platform is distinguished by its modular architecture, featuring a plugin-based extension system for adding new functional modules and a skin-based theme layer for customizing the visual appearance and responsive layouts. It further supports embedding its interface into external clo
Roundcube is a mature, self-hosted webmail client that natively supports IMAP/SMTP, multi-account management, PGP encryption, and integrated contact management, making it a comprehensive solution for your requirements.
MailKit is a cross-platform .NET email protocol library used to implement IMAP, POP3, and SMTP functionality. It provides specialized client libraries for managing remote mailboxes, retrieving and downloading messages, and composing and transmitting emails to remote servers. The library supports secure identity verification through SASL authentication and OAuth 2.0 token-based flows. It includes capabilities for routing traffic through proxy gateways and decrypting PGP-encrypted content embedded within email bodies. The project covers a broad range of email operations, including folder manag
This is a low-level .NET library for building email applications rather than a ready-to-use webmail client with a user interface for managing your inbox.
Thunderbird for Android is a mobile email application designed to synchronize and organize messages from multiple providers within a single unified interface. It functions as an email client that manages accounts through standard network protocols, allowing users to consolidate personal, professional, and educational inboxes into one central location. The application distinguishes itself through integrated support for end-to-end privacy, utilizing cryptographic standards to encrypt and decrypt email content directly on the device. It maintains a local relational database for message storage,
This is a mobile email application for Android rather than a self-hosted webmail client designed to be accessed through a browser.
Simple, modern & fast web-based email client
SnappyMail is a lightweight, modern webmail client that connects to your existing IMAP/SMTP servers and includes features like PGP encryption, contact management, and drag-and-drop support.
Cypht: Lightweight Open Source webmail aggregator PHP, JS. Supports IMAP/SMTP, JMAP and EWS (Exchange Web Services)
Cypht is a lightweight webmail aggregator that provides a web-based interface for managing multiple IMAP and SMTP accounts, though it lacks some of the advanced integrated features like built-in calendar and PGP support.