Using Custom Vhost Entries for Webmail, MySQL, Etc.

[rpuig]

hello everyone !
i need some help with this.... i have added iin vhost

</VirtualHost>
# Configuration for WebMail - webmail.yoursite.tld
<VirtualHost *:80>
ServerAlias webmail.mydomain.com
ServerAdmin webmaster@mydomain.com
DocumentRoot "/etc/sentora/panel/etc/apps/webmail/"
ServerName webmail.mydomain.com
AddType application/x-httpd-php .php3 .php
<Directory />
Options FollowSymLinks Indexes
AllowOverride All
Order Allow,Deny
Allow from all
</Directory>

but when i go to webmail.mydomain.com receive error saying :

403 FORBIDDEN
you dont have permission to access / on this server
Apache Server at webmail.mydomain.com Port 80

any suggestions?
thanks!!!