cPanel makes it easy for you to quickly add auto-responders to your email accounts.
Once you've logged into my.LEOPARD, you can easily login to the cPanel account for the domain name in question.
From there, you can search/filter for "Autoresponder" and click through to the page for it. Then click to Add a new one.
We recommend configuring them as follows if you don't have a specific message in mind.
Character set: Leave as utf-8
Interval: 24 hours
Email & domain: Set to your email address
From: Your Full Name <email@example.com>
Subject: Out of office RE: %subject%
Start & stop: Set for desired period
Thank you for your email today.
I'm unavailable at the moment, and will reply upon my return.