| CraftMail: JavaMail Client [Open Source, GPL] |
| Grendel: Project to build a Java mail/news reader. Based at mozilla.org. [Open Source, MPL] |
| 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] |
| JVMail: Freeware Java SMTP command-line client. |
| Knife: Mail and news client, with support for SMTP, IMAP, POP3, Unix Mailbox, and NNTP. [Open Source, GPL] |
| Mailpuccino: Free, fully-featured email client written as a Java application: Supports POP3 and SMTP, and has an address book, features to view/send/save attachments, delayed posting, etc. [Open Source, GPL] |
| Polarbar Mailer: Multiplatform mail client. [Freeware] |
| Pooka: A JavaMail based email client. Supports IMAP (including disconnected mode). Requires Java 2. [Open Source, GPL] |
| POP3 Mail Viewer on J2ME Devices: A fully functional program which can be used to retrieve POP3 Emails from J2ME based Cell Phones. [Freeware, source available] |
| PopKorn: Standalone java application that lets you check and fetch mails from a POP3 server. [Open Source] |
| ZOE: Indexes and configures e-mail searches. |
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