# Blocking direct access
RewriteCond %{HTTP_REFERER} !^http://www.deine_domain.de/.*$ [NC]
RewriteCond %{HTTP_REFERER} !^http://deine_domain.de/.*$ [NC]
#RewriteCond %{REQUEST_URI} ^.*index\.php$
#oder
RewriteCond %{REQUEST_URI} ^.*\.*$
#RewriteRule .* - [F]
#oder
RewriteRule ^(.*)$ /error_webmail.html [R=302,NC,L]