If you need to restart an automated campaign that has been stopped here's the steps.
Head to the specific stopped campaign that you would like to restart.
Once you're viewing the campaign that you'd like to restart. Click on the "Restart Campaign" button.
You'll then be brought to a confirmation screen. If your campaign has any customers that will be immediately sent a postcard you'll see that information here. Once you are ready for your campaign to be restarted click the "Restart" button and confirm your choice.
That's it your automated campaign will immediately send postcards to the customers that were matching and will also start looking for new matches in the future.