I have an account with an e-mail address that I have used for a long time. I recently created a new account that was linked to the old account. I then deleted the new account. Recently I have encountered a problem that occurs when I send out an e-mail using the old account. The e-mail goes out okay, but when someone tries to reply to the e-mail the response is sent to the account that I deleted. It then fails.

What do I have to do to correct this problem?