[otrs] Time lapse SMTP polling?

Hello all. How frequently is the POP3 mail account read by OTRS? Where may I change that value? Regards, -- ---------------------------------- Boniforti Flavio Provincia del Verbano-Cusio-Ossola Ufficio Informatica Tecnoparco del Lago Maggiore Via dell'Industria, 25 28924 Verbania ----------------------------------