Check the Trash folder in Yahoo Mail
Open the deleted message if it is still in Trash
Move the message back to Inbox or another folder
Use Yahoo Mail search to find the message in other folders
Check the Archive folder if the message was archived instead of deleted
Restore messages from Trash before they are permanently deleted
Submit a Yahoo Mail restore request if the email was deleted recently
Go to Yahoo Help and use the Mail Restore option
Select the approximate date range when the email was deleted
Submit the restore request and wait for Yahoo’s response
Check your account on all devices for synced copies of the email
Review any connected email clients that may have downloaded the message
If the email was permanently deleted, check backups or forwarded copies