Claros In Touch is a multi-protocol full featured webmail(Pop3/IMAP), address book, calendar, RSS Reader and a notebook application. It is aimed to fulfill the need for a stable, full featured messaging application in the Java world. The main features are: multiprotocol(POP3+IMAP) Bayesian spam protection, message filtering, folder support for the POP3 protocol, no need to do database setup, compatibility with any standards-compliant POP3/IMAP and SMTP server, operating system independence, support for sending HTML email, and full MIME compatibility.

jMailComposer is a Servlet/JSP component that allows to send emails from web browser. It supports to, replyto, cc, bcc email addresses and personal names. It provides message priority, return-receipt and file attachments. jMailComposer JSP files could be customized to your own web design and language. You could also include custom fields coming from HTML form into email message. An add-ons section including a Multilanguage Pack (with chinese sample).

Bankoi Web Mail is a script to check your POP account from anywhere, anytime. It works with any mail server

Saké Mail is a very high performance Web-based email system, designed for scaling to large numbers of concurrent users. It takes advantage of the Java Servlet API's memory-resident architecture and multi-threading HTTP response model. It avoids file system accesses through memory caching at every possible point, and never needs to touch the file system at runtime at all if coupled with an IMAP server. It supports POP3, IMAP, and SMTP, including authenticated SMTP. It also provides an extremely sophisticated message rendering system that can easily handle even complex HTML encoded messages with attachments that have been forwarded multiple times.

WebPop is a Java servlet that allows you to read your mail box. This servlet supports Post Office Protocol (POP).

It is a Java servlet allows you to support web-based mail service including mail-lists. So all mail (private, and mail lists) will be saved and distributed within your server. This servlet offers user interface to read/send mail, create and maintain mail lists etc.