Usermin For Webmail
If you just want to use Usermin for web-based email, there is a modified package available with a better theme and default configuration for that purpose. It assumes that your system is already running a properly configured IMAP server such as Dovecot, but can be easily configured to read mail from Maildir or mbox-formatted directories instead.
Unix tar/gzip format
http://prdownloads.sourceforge.net/webadmin/usermin-webmail-1.450.tar.gz (5.4M)
RPM suitable for Redhat, Fedora, CentOS, SuSE or Mandrake Linux
http://prdownloads.sourceforge.net/webadmin/usermin-webmail-1.450-1.noarch.rpm (5.8M)
Debian package suitable for Debian, Ubuntu or other derived Linux
http://prdownloads.sourceforge.net/webadmin/usermin-webmail_1.450_all.deb (5.4M)
The installation processes for these packages is exactly the same as the regular package of Usermin.