Each postcard has its own signature where the return address is stored. Here's how you can update your signature so you can change your return address.
Navigate to Mail. (If you are on the mobile app, tap More)
Click Postcards.
Click the three dots below the postcard that you want to edit.
Click Edit Design.
Click Signature.
Update the return address.
Click Save Design.
Note: Update your return address for each of your postcards to make sure that the returned mail will go to the correct address.
Hope this helps! If you have questions, please reach out to our Customer Support Team through the Help & Support option in the app or the website.
Live Chat Support is available weekdays from 9 AM to 10 PM EST & weekends from 10 AM to 6 PM EST.