Open Source Web Mail Clients in Java

JWMA: Java webmail over IMAP; Jakarta Mail; folders, compose, HTML/plain, attachments; Derby/PostgreSQL/MySQL for preferences.

Ajax communication suite: webmail, address book, notes, calendar, instant messenger, RSS reader; spam protection; enterprise-oriented.

Servlet-based webmail on Struts; efficient mail store interaction and low support overhead.

Java Servlet webmail: WWW access to IMAP/POP3; folders, i18n, compose, MIME, virtual domains.

Java webmail webapp for POP3/IMAP; deploy WAR to Tomcat/Jetty; access mail via HTTP when mail ports are blocked.