All of our default templates include the personalization tags of [physical_address] [unsubscribe] and [forward_to_friend]. You can play around with these tags in the body of your email, on our responsive templates, changing the alignment of them. Or, you can customize your own Email Footer.
You can edit or remove the default email footer text, under Settings > Customization Options
The text/copy for the unsubscribe link can be managed under Settings > Campaign Settings > Unsubscribe Options