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Please be advised that our restore process is completely automated, and we can only restore messages lost or deleted within the last 7 days. Any messages that can be restored will reappear in your mailbox within 8 hours. If you’re not seeing all the messages you expect after 8 hours, it’s because they were no longer recoverable.
You can request a mail restore here. Once the restore is complete you would need to check your trash folder for the recovered messages.
If you are using a mail client such as Outlook or the Native mobile app, emails may be deleted by that third party client. We do recommend accessing your mail via yahoo.com or the Yahoo Mail app to avoid this issue.