One of the most popular alternatives to Roundcube is Mailpile, which is free and open source. Other popular alternatives are Rainloop, Kolab, SOGo and Zimbra Collaboration Suite. WebMail Providers like Roundcube are a crowded field, with more than 25 alternatives for self-hosting, the web, Linux, Mac and Windows.
A fully fledged, free email server solution, an open source project (GPL v2).
Use official binary packages from Linux/BSD distributions, with both i386 and x86_64 support.
Easy, fast deployment in LESS THAN 1 MINUTE. View YouTube Video to check how easy it is.
Works on both no.
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...).
Spain
EU
High security web-based e-mail system which extends considerably the email system to much more than currently exists.
NeoMail is a web-based mail client that allows users to access their mail spools and send messages. It does not require a POP3 server, or any shell access for the users. It interfaces directly with user mail spools.
TrulyMail is an email client and a private messaging system, very feature rich (voice recording, script blocking, etc.).
United States
ihasmail is a webmail client for Stalwart Mail Server. It handles mail, calendars, contacts, file storage and Sieve filters in a single responsive interface that works on a phone as well as a desktop monitor.
Vietnam
India
