That's a great question! Because a valid physical address is legally required to display in your email campaign's footer it can't be entirely removed. However, you can use a PO box for your company if you're not comfortable using your home address.
I am not completely satisfied with Nichelle's response. I am using CTCT for a non-profit volunteer organization that I am involved with. None of us volunteers want our personal address on the emails that we send to our members, and we do not have a PO Box. Isn't there a way around putting in an actual physical address?
I can definitely appreciate not wanting your home address made public for your business. We do understand,