Abstract
In the article the author presents the problems of new duties of the defendant when the first pleading sent by the court to the address provided in the claim return with the annotation of the post office that the addressee has been notified twice. The test discusses doubts as to the understanding of the term “pleading” used in art. 1391 of the Code and possible extension of the new provision to service on legal persons and organizational entities without legal personality. Analysed are the provisions concerning court bailiffs, which regulate the details of service performed by a bailiff and their search for a current address of the defendant.