If you've accidentally deleted important emails on your iCloud account, don't panic. iCloud has a built-in feature that allows you to recover deleted emails for up to 30 days. Simply log in to your iCloud account using a browser, go to the Mail section, and check your Trash folder. If your email is not there, try looking in the Archive folder. If you still can't find it, you can restore your iCloud account to an earlier backup.