Would you like to see a confirmation message when a message is deleted? No problem:
1. Click the Gears icon located at the upper right corner of the email interface and select the Mail Tab.
2. Under the Preferences link, click on the Delete Message Confirmation link under Message Deletion subheading.
3. Click on the radio button next to your choice. Here are your options:
4. Click on the Save button.
Note: This will determine if a confirmation message is displayed when you are about to delete a message.