Open the postcard wizard by hitting the big orange "Send Postcard" button in the top left. You can also goto www.postcard123.com and it will open automatically.
Select either Just Listed or Just Sold depending on the type of campaign your running.
Enter your name, phone number and Trulia URL. We use trulia to get the property info so you don't have to worry about building anything. An example trulia url is
The easiest way to find the url is by searching Trulia or Google for the address. If you want you can just change the Google search string using the button below.
Continue the last few steps of the postcard builder outlined in the below link.