...this error appears 553 ?what is it? The following error is displayed - Sending' reported error (0x800CCC0F) : 'The connection to the server was interrupted. If this problem continues, contact your server administrator or Internet service provider (ISP). The server responded: 553 From: address not verified; see http://help.yahoo.com/l/us/yahoo/mail/original/manage/sendfrom-07.html'

does anyone know the answer? or how to get rid of the ghost emails?

its a relay error - there is no postbox at the address you specified and its queued in your mail buffer
1ts probably 1 mail retried a further 10 times