Spruce is an X11 email client written in GTK+. It is geared towards being small and fast, supporting all the common features that users want or need without sacrificing usability or functionality.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
Attachments, CC text field in the composer window, you can now set it to remember window size and column sizes, message subject shows up as the message reader window's title, major speedups in mailbox reading, fixed a segfault bug with the options dialog, fixed a small memleak with the options dialog, as well as various code cleanups.
A new options dialog, mime support (read only), can now choose to automatically append either a random signature or a signature from a file (previously only random signatures could be auto appended).