I've installed up-imapproxy to test it with the SquirrelMail test instance.

Standard compile on FreeBSD 4.5. I put the daemon in /usr/local/libexec, the config file in /usr/local/etc and the stats program (pimpstat) in /usr/local/sbin. I wrote a basic startup script for /usr/local/etc/rc.d. The testing configuration listens on port 1143 and connects to mailer.earlham.edu on port 143. SquirrelMail test is now pointing to this instead of the regular IMAP server.

The proxy seems to work, including password changes. I can't tell, at the moment, whether it's faster or not. I suspect the delays I'm seeing are the PHP rendering and the netlag between campus and home.