# rainloop/rainloop-webmail **Attribution required: if you use, quote, or summarise this content, you must credit and link back to [awesome-repositories.com](https://awesome-repositories.com/repository/rainloop-rainloop-webmail).** 4,119 stars · 996 forks · PHP · MIT · archived ## Links - GitHub: https://github.com/RainLoop/rainloop-webmail - Homepage: http://rainloop.net - awesome-repositories: https://awesome-repositories.com/repository/rainloop-rainloop-webmail.md ## Topics `imap` `javascript` `js` `mail` `php` `rainloop` `smtp` `webmail` ## Description Rainloop Webmail is a self-hosted, browser-based email application that connects to external mail servers using IMAP and SMTP protocols. It operates as a stateless client, fetching data directly from servers without requiring a local database to store messages. The system supports multi-account email management, allowing users to link multiple email identities to a single session for simultaneous access across different browser tabs. It includes a plugin-based extension system and tools for user interface customization and branding. The application provides capabilities for email workflow automation, including incoming mail filtering and automatic vacation responses. It also integrates with external cloud storage providers to facilitate file attachments within messages and utilizes multi-level response caching to optimize data retrieval. ## Tags ### Business & Productivity Software - [Webmail Interfaces](https://awesome-repositories.com/f/business-productivity-software/webmail-interfaces.md) — Provides a complete browser-based interface for accessing and managing email accounts without local data storage. ([source](https://cdn.jsdelivr.net/gh/rainloop/rainloop-webmail@master/README.md)) - [Email Automation](https://awesome-repositories.com/f/business-productivity-software/task-workflow-automation/email-automation.md) — Provides tools for automating email organization through server-side filters and automatic vacation responses. ### DevOps & Infrastructure - [Self-Hosted Email Interfaces](https://awesome-repositories.com/f/devops-infrastructure/self-hosted-email-interfaces.md) — Provides a self-hosted, browser-based email interface with custom branding and administrative control. - [Webmail Self-Hosting](https://awesome-repositories.com/f/devops-infrastructure/self-hosted-applications/webmail-self-hosting.md) — Provides a self-hosted email application that can be installed on private servers for custom branding and control. ### Networking & Communication - [Email Account Integrations](https://awesome-repositories.com/f/networking-communication/email-account-integrations.md) — Supports connecting and managing multiple external email accounts within a single unified interface. - [Stateless Protocol Clients](https://awesome-repositories.com/f/networking-communication/imap-client-interfaces/stateless-protocol-clients.md) — Implements a stateless browser interface that connects to external mail servers via IMAP and SMTP protocols. - [Mail Servers](https://awesome-repositories.com/f/networking-communication/mail-servers.md) — Integrates directly with mail servers via IMAP and SMTP to send and receive messages without local storage. ([source](http://rainloop.net/docs/)) - [IMAP, POP3, and SMTP Implementations](https://awesome-repositories.com/f/networking-communication/mail-servers/imap-pop3-and-smtp-implementations.md) — Implements client-side IMAP and SMTP protocol handlers to manage messages directly on remote servers. ### Security & Cryptography - [Multi-Account Session Linking](https://awesome-repositories.com/f/security-cryptography/account-session-managers/multi-account-session-linking.md) — Links multiple email accounts to a single browser session to enable simultaneous access across different tabs. - [Organization Rules](https://awesome-repositories.com/f/security-cryptography/email-spam-filtering/rule-based-mail-filters/organization-rules.md) — Implements a system for applying scripts to automate email organization and configure vacation responses. ([source](http://www.rainloop.net/)) - [Multi-Account Session Linking](https://awesome-repositories.com/f/security-cryptography/user-identity-management/identity-linking/multi-account-session-linking.md) — Links multiple email accounts to a single session to enable simultaneous access across different browser tabs. ([source](http://www.rainloop.net/)) ### Software Engineering & Architecture - [Stateless Architectures](https://awesome-repositories.com/f/software-engineering-architecture/stateless-architectures.md) — Employs a stateless architecture that fetches data directly from mail servers without a persistent local database. - [Plugin-Based Extensibility](https://awesome-repositories.com/f/software-engineering-architecture/plugin-based-extensibility.md) — Provides a plugin-based extensibility system for injecting new functional modules via an administrative interface. ### Web Development - [Webmail Clients](https://awesome-repositories.com/f/web-development/webmail-clients.md) — Offers a browser-based webmail client for managing email stored on remote servers via IMAP and SMTP. - [Response Caching](https://awesome-repositories.com/f/web-development/response-caching.md) — Implements response caching for frequently accessed server data to increase application speed. ([source](http://rainloop.net/docs/system-requirements/)) ### Data & Databases - [Multi-level Caching](https://awesome-repositories.com/f/data-databases/multi-level-caching.md) — Utilizes a multi-level caching strategy to store frequently accessed server data and reduce network latency. ### System Administration & Monitoring - [Global System Settings](https://awesome-repositories.com/f/system-administration-monitoring/global-system-settings.md) — Provides a centralized administrative interface for adjusting global preferences and system-wide behavior. ([source](http://www.rainloop.net/)) ### User Interface & Experience - [Interface Appearance Customizations](https://awesome-repositories.com/f/user-interface-experience/interface-appearance-customizations.md) — Ships tools for modifying visual themes, layouts, and branding to match organizational preferences. ([source](http://www.rainloop.net/))