Sylpheed is a simple, lightweight but providing plenty of features and easy-to-use e-mail client (mailer, MUA). Sylpheed is a tool that allows you to receive and send emails. Sylpheed mainly runs on Unix-like systems such as Linux, BSD, and Mac OS X. Here are some key features of "Sylpheed": · Simple, beautiful, and well-polished user interface · Comfortable operationality which is built in detail · Immediately available with minimal configuration · Lightweight operation · High reliability · Internationalization and Multilingualization support · High-level Japanese processing · Various protocols support · Security features (GnuPG, POP3/IMAP4/NNTP over SSL/TLSv1) · Powerful filtering · Junk mail control · Flexible cooperation with external commands