Webmail and apache reverse proxy

Hi,

I have an Apache server with proxy reverse in the DMZ, and I am configuring it

to access four internal Mail servers.

webmail.domain.com\sales\mail\user.nsf → sales.domain.com\mail\user.nsf

webmail.domain.com\marketing\mail\user.nsf → marketing.domain.com\mail\user.nsf

I can login in Mail Database but the frames are not showed correctly:

"The requested URL /mail/user.nsf/Mail Picker was not found on this server. "

“The requested URL /mail/user.nsf/($Inbox) was not found on this server.”

My httpd.conf is:

ServerName webmail.domain.com

Port 80

ProxyRequests Off

<Directory proxy:*>

Order deny,allow

Deny from all

<Directory proxy:/mail/>

Order allow,deny

Allow from all

<Directory proxy:/domjava/>

Order allow,deny

Allow from all

<Directory proxy:/icons/>

Order allow,deny

Allow from all

ProxyVia On

ProxyPass /sales http://sales.domain.com

ProxyPassReverse /sales http://sales.domain.com

Any suggestion?