Open Gmail
Select the unwanted emails by checking the boxes next to them
Click the trash icon
To delete all emails in a folder, open the folder first
Click the select-all checkbox at the top
Click “Select all conversations in this folder” if shown
Click the trash icon
To delete emails from a specific sender, search the sender’s address
Select the matching emails
Click the trash icon
To delete emails permanently, open the Trash folder
Click “Empty Trash now”
To stop future unwanted emails, open the email
Click “Unsubscribe” if available
Use Gmail filters to automatically delete unwanted emails
Go to Gmail settings and open Filters and Blocked Addresses
Create a new filter
Choose the delete action for matching emails