Sign in to your Yahoo Mail account
Open the folder you want to clean up
Click the checkbox at the top to select all visible emails
Click the Delete icon
Repeat on additional pages if needed
Use the search bar to find specific emails by sender, subject, or date
Select the matching emails
Click the Delete icon
Open the Trash folder
Click Empty Trash to permanently remove deleted emails
To delete all mail in a folder, open the folder, select all, and delete
To delete emails from a specific sender, search the sender name, select all results, and delete
To delete old emails, search by date range, select the results, and delete