Rainloop is described as 'Simple, modern & fast web-based email client. Modest system requirements, decent performance, simple installation and upgrade, no database required. All these make RainLoop Webmail a perfect choice for your email solution' and is a popular webmail provider in the office & productivity category. There are more than 10 alternatives to Rainloop for a variety of platforms, including Self-Hosted, Web-based, Linux, PHP and Cloudron apps. The best Rainloop alternative is Roundcube, which is both free and Open Source. Other great apps like Rainloop are Mailpile, SOGo, Horde and SnappyMail.
Roundcube webmail is a browser-based multilingual IMAP client with an application-like user interface. It provides full functionality you expect from an e-mail client, including MIME support, address book, folder manipulation, message searching and spell checking.
Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features. The development of Mailpile is funded by a large community of backers and all code related to the project is and will be released under an OSI approved Free Software license.
The latest release (1.0.0rc6) was released in September 2019.
mailpaile is just a mailbox for unix system users - no one will ever need that.
SOGo is groupware server with a focus on scalability and open standards.
SOGo provides a rich AJAX-based Web interface and supports multiple native clients through the use of standard protocols such as CalDAV, CardDAV and GroupDAV.Share your calendars, address books and mails in.
Enterprise-level, browser-based suite for IMAP email, calendar, contacts, tasks, notes, wiki, and file management, offering syncing, shared and unlimited resources, multilingual support, customizable dashboard, and integration with mobile and external clients.
The drastically upgraded & secured fork of RainLoop Webmail Community edition.
The latest version (2.38.2) was released in October 2024.
SnappyMail began its life as a fork of Rainloop because of the lack of communication from the dev team behind the project. Namely, after a critical security breach was found in late 2021, users waited for an official patch that secretly released in june 2022 without any talk on the subject. SnappyMail tries to change that, by adding features not present in its predecessor and solving issues that went unadressed before.
It isbfaster and supports PGP much better
Much more support for RFC's
Cloudflare Workers-based email solution providing multiple address generation, attachment storage via R2, responsive web interface, RBAC management, Resend bulk email, Telegram or third-party forwarding, verification code recognition, and ECharts analytics.
All your E-mail, from all your accounts, in one place. Cypht is like a news reader, but for E-mail. Cypht does not replace your existing accounts - it combines them into one. And it's also a news reader :).
Atmail webmail system offers a webmail client, email server platform and mailserver appliance for Linux, Unix and Windows.
NexMail is an open-source, modern webmail client designed for self-hosted email servers. Enjoy a clean, intuitive interface with powerful features for managing your emails efficiently.
SquirrelMail is a standards-based webmail package written in PHP. It includes built-in pure PHP support for the IMAP and SMTP protocols, and all pages render in pure HTML 4.0 (with no JavaScript required) for maximum compatibility across browsers.
Microservice based webmail client built with ReactJS and Spring.
Minimalistic webmail client which currently has the main features of any other mail client (read mail, compose mail, organize mail folders...).
Switzerland
Canada
Netherlands
EU
China
United States
Australia
Pakistan
Spain
roundcube only hosts local mailboxes