When you delete an email in Yahoo Mail, it goes to the Trash folder. The Trash folder is where you can find all the emails you’ve deleted from your Inbox, as well as any messages you’ve sent to the Trash. The Trash folder is automatically emptied every day. However, you can also manually empty the Trash folder at any time.
Video – How Long Does Yahoo Mail Keep Trash
If you’re wondering how long Yahoo Mail keeps trash, the answer is that it depends on your account settings. You can choose to have Yahoo Mail delete messages after a certain number of days, or you can keep them until you manually delete them.