I mention my network architecture.
My service provider has not made zone delegations to manage my DNS, and currently I only have one PTR record pointing to one of my servers which has a real IP on the Internet. The PTR registry is www and is accessible from the internet as www.example.com
The IP that I have assigned to that registry is 200.x.x.x. where I have hosted an Apache Web server.
Within my LAN I have a Zimbra mail server, and I would like to be able to publish it in order to use the webmail from the outside. Example: www.example.com/mail
How can I configure the Apache web server to do reverse proxy?