However, on 29 March 1917, Zimmermann gave a speech to the Reichstag confirming the text of the telegram and so put an end to all speculation as to its authenticity.
Nepaisant to, 1917 m. kovo 29 d. Artūras Cimermanas pasakė kalbą, kuria patvirtino telegramos tekstą ir paneigė visas su jos autentiškumu susijusias spekuliacijas.