Hi , i have tried to configure my sendamail for receive my [EMAIL PROTECTED] and send this to my internal exchange server. But when de email is received and tries route to my internal networks the mail is given back whit the error the host 192.0.0.3 is unknown. My linux box have 2 ethernet cards external 200.*.*.* and internal 192.0.0.5 my exchange server is 192.0.0.5 i configured sendmail whit virusertable and whit domain table and the two no work they know the problem? Maximo Monsalvo Guspamar S.A Responsable Sistemas