Qmailadmin

cd /usr/src
mkdir qmailadmin
cd qmailadmin
wget http://sourceforge.net/projects/qmailadmin/files/qmailadmin-stable/1.2.1...
gunzip qmailadmin-1.2.13.tar.gz
tar -xpf qmailadmin-1.2.13.tar
cd qmailadmin-1.2.13/
# this is a one-line command
./configure --enable-cgibindir=/usr/local/apache/cgi-bin --enable-htmldir=/var/www/qmailadmin --enable-maxusersperpage=100 --enable-maxaliasesperpage=100 --disable-ezmlm-mysql --enable-imagedir=/var/www/qmailadmin/images --enable-imageurl=/qmailadmin/images
#si usa vqadmin utilice el mismo path de cgi-bin
make && make install-strip
rm /etc/apache2/sites-enabled/000-default

nano /etc/apache2/sites-available/MAIL.EXAMPLE.COM

===========================================================
<VirtualHost *:80>
    ServerAdmin webmaster@localhost
    ServerName IP_ADDRESS
    ServerAlias MAIL.EXAMPLE.COM
    DocumentRoot /var/www
    ScriptAlias /cgi-bin/ /usr/local/apache/cgi-bin/
</VirtualHost>
===========================================================

a2ensite MAIL.EXAMPLE.COM

/etc/init.d/apache2 restart