Hi folks, i have the following problem. We use a linux box for our NT Network as a firewall/router/gateway. We are hosting three domains, all the mail for these domains is send to the described linux box. On this box sendmail is running and forwarding the mails to our internal M$-Exchange server. The problem is that sendmail remaps ever incoming mail to our internal domain. for example. mail is send to [EMAIL PROTECTED] then sendmail forwards it as [EMAIL PROTECTED] this means you can send a mail to [EMAIL PROTECTED] even if the user is not existing at this domain. All domain names are in sendmail.cf and there is an From-Header entry in etc/rc.config.d/sendmail.rc.config that contains the internal name of the router. if i remove it then no mails can be send and recieved. any help is appreciated. regards alex - To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.linux-learn.org/faqs