Imap Proxy server?

[whizkid at ValueDJ.com]

Hey all,
    I have looked into this before but never really found too much info on
it.  On one of my FreeBSD boxes I run Squirrelmail.  I was told that
there is a Imap Proxy server that can be ran on the local box to help
with some slowness with accessing email.  I have installed the Imap
Proxy server from the ports but there doesn't seem to be any decent
documentation.  Also the link to the project site is no longer valid: 
http://www.kuleuven.net/projects/imapproxy/

Has anyone installed / configured this and gotten it to work correctly?