I needed a tool to synchronize imap folders from one server (M\$ Exchange) to another imap server. Imapsync seemed to be a good tool but didn't exist for CentOS 5 so i've built it : http://rpms.arrfab.net/centos/5/i386/repodata/repoview/imapsync-0-1.219-1.html   . Also available in the x86_64 tree ...