This document provides instructions for redirecting a subdomain like "email.example.com" to a website's webmail interface at "example.com/webmail". The steps are: 1. Create the subdomain like "email" in the cPanel. 2. In cPanel, go to the redirects page and enter the webmail URL like "http://example.com/webmail" in the redirect field. 3. Clear the browser cache and cookies, then loading the subdomain should redirect to the webmail page. If not working, check the domain control panel or try different redirect settings there.