Rest assured that you do not need to delete any campaigns from your Moosend account. Nonetheless, if you are certain that you want to delete a campaign from your account it only requires a couple of clicks to do so.
Just follow the steps below:
1. Click on the Campaigns button, located on the left side menu. 
2. Click on the X button, in the Actions column, right next to the campaign which you want to delete. 
3. Click the OK button on the confirmation pop-up message that appears on the top of the screen. 