You’ll, however, need to confirm if you want the emails to be deleted from Gmail trash folder. Then go to ‘Empty Trash Now’ option and click on the ‘Empty trash now’ button.
Then check on the left side of the page for the ‘More’ option.
In trash check out the notifications on the top stating Empty Trash Now, Click on the Empty trash now button. Go to the toolbar and click on the Delete forever option. First, you need to log into your Gmail Account. Click on more on the left side of the page. It may sound okay to leave them be but they’ll start to take up some of your storage space a. Here are the few steps to delete the Trash Mails. Answer already points to the solution which worked for me, but being inexperienced / not-a-professional-developer, it took me a little work to translate it into a working solution to the original question. Trash and spam emails can quickly pile up on your gmail account.