Step 1: Hover over [Systems] → click on [Drip-Education®]  → [Search Campaigns & Broadcasts].
 
Step 2: Use the search options page to refine the search for the campaign you are looking for. 
 
Step 3: Click on the [View/ Edit Campaign] button for the campaign you wish to delete an email from.
 
Step 4: The Campaign settings will display → from here scroll to find the email you wish to delete and click on the [More] button → [Delete]. 
 
Step 5: Click the [OK] button.