1. A method for identifying a postal mailing, comprising the steps of: registering a mailing in a postal mailings identification system by at least one recognizable pictorial feature and at least one external information item; in the postal mailings identification system, electronically performing a first recognition operation using the at least one recognizable pictorial feature to identify the mailing; and if the first recognition operation fails to result in identification of the mailing, electronically performing a further identification step using the at least one external information item and the at least one pictorial feature.