Because Yahoo Mail gives you unlimited storage space and doesn't delete old messages unless you do, you can always find old emails by searching your inbox or sent folder. ... You can only retrieve a message that's been lost within the last 48 hours.

Does Yahoo automatically delete old emails?

To save server space, Yahoo won't cling to your deleted emails forever. Yahoo automatically clears your Trash and Spam folders after a certain period of time — Trashed emails delete after seven days, while spam emails delete after 30 days — and these settings can't be changed.

What happened to all my old Yahoo emails?

Log in to your Yahoo Mail account and click on the gear icon. Select “Help” from the menu options. Enter “Restore lost or deleted emails” in the Search Help field. Click on “Restore lost or deleted emails or IMs” from the list of results.