Client-SSL

<VirtualHost *:443>
       ServerAdmin webmaster@localhost
       ServerAlias ssl.frotmail.nl
       ServerName ssl.frotmail.nl
       DocumentRoot /srv/www/ssl
       <Directory />
               Options FollowSymLinks
               AllowOverride None
       </Directory>
       ErrorLog /var/log/apache2/error.log
       CustomLog /var/log/apache2/ssl_access.log combined
       SSLEngine on
       SSLCertificateFile /etc/ssl/wildcard.frotmail.pem
       SSLCertificateKeyFile /etc/ssl/server.key
       SSLCertificateChainFile /etc/ssl/root.pem
       SSLCARevocationCheck chain
       SSLVerifyClient optional
       SSLVerifyDepth 2
       SSLOptions +StdEnvVars
       SSLCACertificateFile /srv/www/ssl/http/Frotmail.nl-ClientSSL.cer
       SSLCADNRequestFile /srv/www/ssl/http/Frotmail.nl-ClientSSL.cer
       SSLCARevocationFile /srv/www/ssl/http/Frotmail.nl-ClientSSL.crl
       BrowserMatch "MSIE [2-6]" \
               nokeepalive ssl-unclean-shutdown \
               downgrade-1.0 force-response-1.0
       BrowserMatch "MSIE [17-9]" ssl-unclean-shutdown
</VirtualHost>