You can only delete campaigns that have been sent, five days after they have been sent. We limit the deleting of campaigns to five days because if you delete a campaign that is still receiving opens and clicks stats are still being accumulated.
Here's how to delete a campaign...
Click the Campaigns tab on the left side of the MPZMail Control Panel
In your list of campaigns, find a campaign that was sent five or more days ago and you will see a drop down option next to VIEW. Click on the drop down to bring up the Delete option.
Clicking the delete option brings up a delete confirmation popup. If you are sure you want to delete the campaign click the "Delete It" button.
You will be returned to your list of campaigns, and the campaign you chose to delete will be gone.