yawebmail is a webmail-client written in Java as a webapp. Having it deployed on your Internet-accessed webserver, you can get access to your POP3- or IMAP-Mailbox, even if you are behind a firewall that blocks the eMail-ports - in general port 25 for SMTP, port 110 for POP3 and port 143 for IMAP (natch you must be allowed to access your webserver via HTTP...).
其他Java Email客户端及Webmail系统 开源项目资源: