Redirect permanent /webmail /webmail/
Redirect permanent /Webmail /webmail/
Redirect permanent /WebMail /webmail/
Redirect permanent /roundcube /webmail/
<Proxy /webmail>
   Order deny,allow
   Allow from all
</Proxy>
ProxyPass /webmail/  http://localhost:2095/
ProxyPassReverse /webmail/ http://localhost:2095/