How to recover lost e-mails in IPhone?

How to recover lost e-mails in IPhone?

If you try to send an e-mail, but the iPhone can't get network access. You might think your message has disappeared completely, but don't worry—it's still on your phone. A temporary Outgoing folder is created, and the message winds up in there.

You can access this temporary folder from the main screen of the sending account; the folder will disappear once network access is available and the message is sent.