Customized context path

Hi,

I need to make a portal Liferay cohabitate with Zimbra on the same sub-domain.
Or, in Liferay and in Zimbra, i've got paths like /home /user...

It makes the apache ProxyPass impossible to manage.

Is there a way to add a context path to Zimbra.
I would like for instance all my zimbra URI to start with /mail/ ?

Thanks for your reply.

Tom