If you accidentally deleted all incoming messages of e-mail, do not despair. Though it is possible to restore folder contents not always, but it is worth trying as chances to return messages are rather high.
Instruction
1. Some mail services when using the option "Select Everything" or similar note all messages not within the folder, and only within the page. Check other pages - perhaps, from them messages were not gone.
2. Without leaving the web interface, pass into a trash folder or "Basket". Check whether there were no messages erased by you postponed there. Select them and transfer to the Entering folder (perhaps, it is necessary to transfer manually each page). You do not leave a box, you will not transfer yet all letters as in some mail services the automatic cleaning of a trash folder at an output is provided.
3. If you use not the web interface, but an e-mail client and during removal did not select the option "Delete Messages on the Server" or similar, so the Entering folder at you is cleaned only locally. Come into a mailbox via the web interface or from other computer, and you will be able to read incoming messages again.
4. If you deleted letters from the server via the web interface, but before checked mail by means of the client program, start it, but do not connect to the server. Make the backup copy of messages which you managed to download. Also arrive and if you cleaned the Entering folder on the server from one computer, but managed to download before it contents of this folder an e-mail client on other machine.
5. Having found out that messages are deleted from the server, and there is no their local copy left anywhere, check in settings of the account whether readdressing on other box belonging to you is included. If that is available, enter this box - in it there is a copy of your incoming messages.
6. Consider that some mail services automatically delete messages from the Spam or Suspicious folder if they are sent more than several days ago. Periodically look in this folder. Those letters which were included in it by mistake and actually spam are not, move manually to the Entering folder.