---- Original Message -----
From: "Lucas Peet" <lpeet@eccod.com>

> Use the Apache rewrite module (mod_rewrite.so).  Here's how I redirect
from
> webmail.domain1.com to https://webmail.domain2.com

>      RewriteEngine On
>      RewriteRule /.* https://webmail.domain2.com/ [R]

> Just put the full path of the URL in your Rewrite rule.

Using Permanent instead also has the ability to cause web indexes to
automatically update the URL, and returns an appropriate message
(Permanently Redirected) to the browser, which can update cached references.