Thanx guys, anyway The probem was that exim was doing ident lookups and my ipchains firewall DENIED them. So i've changed the rule to REJECT and voilá! Yhe lookup stops inmediately -- ______________________________________________________ Felipe Alvarez Harnecker. QlSoftware. Tel. 09.874.60.17 e-mail: felipe.alvarez@qlsoft.cl Potenciado por Debian GNU/Linux http://qlsoft.cl/ ______________________________________________________