Openwebmail configuration

You can see configuration file here http://openwebmail.org/openwebmail/doc/readme.txt

REQUIREMENT
-----------
Apache web server with cgi enabled
Perl 5.005 or above

CGI.pm-3.05.tar.gz (required)
MIME-Base64-3.01.tar.gz (required)
libnet-1.19.tar.gz (required)
Digest-1.08.tar.gz (required)
Digest-MD5-2.33.tar.gz (required)
Text-Iconv-1.2.tar.gz (required)
libiconv-1.9.1.tar.gz (required if system doesn't support iconv)

CGI-SpeedyCGI-2.22.tar.gz (optional but highly recommended, for persistent running)
Compress-Zlib-1.33.tar.gz (optional, for HTTP compression)
ispell-3.1.20.tar.gz (optional, for spellcheck)
Quota-1.4.10.tar.gz (optional, for unixfs quota support)
Authen-PAM-0.14.tar.gz (optional, for auth_pam support)
openssl-0.9.7d.tar.gz (optional, for pop3 over SSL support,
required only if system doesn't support libssl)
Net_SSLeay.pm-1.25.tar.gz (optional, for pop3 over SSL support)
IO-Socket-SSL-0.96.tar.gz (optional, for pop3 over SSL support)
clamav-0.70.tar.gz (optional, for viruscheck,
available at http://www.clamav.net)
Mail-SpamAssassin-3.02.tar.gz (optional, for spamcheck,
available at http://www.spamassassin.org)
antiword-0.35.tar.gz (optional, for msword preview)
ImageMagick-5.5.3.tar.gz (optional, for thumbnail support in webdisk)
tnef-1.2.3.1.tar.gz (optional, tnef is used mostly by mails from MS Outlook and Exchange)
wget-1.9.1.tar.gz (optional, for URL uploading support in webdisk & msg composing)
lsof_4.73A.freebsd.tar.bz2 (optional, for openwebmail-tool --unlock)

for debian users:
openwebmail can download and install using apt-get put following tag in your /etc/ap/source.list file

#OpenWebmail
deb http://people.debian.org/~srua/openwebmail/sarge ./