Recovering deleted messages

If you've deleted a message permanently, by clicking Delete Forever in your Spam or Trash, you won’t be able to recover the message using the Gmail interface.
In the past, users have reported that they are missing all of their messages as a result of unauthorized access. If your account was compromised and you would like us to investigate whether recovery is possible, please first complete this process to secure your account and then file a report.
If you've moved a message to Trash, by clicking Delete, but it's been fewer than 30 days and you haven't permanently deleted it, follow these steps to put it back in your inbox:

1. Sign in to Gmail.
2. Click Trash along the left side of any Gmail page. (If you don't see Trash along the left side of your Gmail page, go to the Labels tab in Settings, then click the show link next to the Trash label.)
3. Locate the message you'd like to move to your inbox, and check the box next to the sender's name.
4. Click Move to Inbox.