Zola allows you to customize whether your return address is placed on the front of the envelope, the back or even not at all!
When logged into any internet browser, you'll navigate to the Envelope tab within your paper draft. Tap inside the return address box and then select Back under return addressing options.
From the Zola iOS app, you'll click Next until you land on the Envelope screen. At the bottom, tap Return Address next to the mailbox icon and select either Front, Back or None.
No matter where you put it, be sure to update the default address so your mail carrier and guests know where to reach you!