Knife - Mail and news client, with support for SMTP, IMAP, POP3, Unix Mailbox, and NNTP. [Open Source, GPL] HotJava Views - A set of tightly integrated corporate communication tools for email, calendar management, name directory and web browsing. Supports Windows, JavaOS, and Solaris. [Commercial] ICEMail - An email client written in Java and based on the Java Mail API. [Open Source, GPL] Pooka - A JavaMail based email client. Supports IMAP (including disconnected mode). Requires Java 2. [Open Source, GPL] PopKorn - Standalone java application that lets you check and fetch mails from a POP3 server. [Open Source] Grendel - Project to build a Java mail/news reader. Based at mozilla.org. [Open Source, MPL]