The details that appear at the bottom of all emails you send out form part of your footer and reflect your company name and physical address information. To edit this information hover over your username in the navigation and click Customer Profile.
In the Properties tab, you can update the name field to that of your company. This will reflect in the footer as who the email is being sent from. You can also change the physical address details, contact numbers, URL, and industry.
Other customisations include Branding, IP locking security settings, and a variety of contact settings.