PeteDotCom -> Networking -> Linux -> Configuring Mail ->   Configuring sendmail to configure sendmail to upload mail, you must modify sendmail's configuration file /etc/sendmail.cf 1. to configure sendmail, you must modify sendmail.cf to name the following: the smart host the host that you are - that you are masquerading as if you decide to use a smart host, then you must set code DS in sendmail.cf to name the smart relay host as follows: # "smart" relay host (may be null) DShostname where hostname gives the full name of the host that will be handling you mail. for example, to name hsot smtp-server at domain myisp.com as you smart host, set DS as follows: DSsmtp-server.myisp.com 2. to configure inetd so that it invokes sendmail to process mail arriving via SMTP, insert the following line into file /etc/inetd.conf smtp stream tcp nowait root /usr/sbin/tcpd sendmail -v 3. type command ps -ax | grep inetd this will show you information about the inetd process. the first number in the line returned by the previous command shows you inetd's process identifier. typecommand kill processid where processid is inetd's process identifier. type command /usr/sbin/inetd that's all there is to it. inetd will now invoke sendmail to handle messages arriving via SMTP. FETCH MAIL 1. the following .fetchmailrc tells fetchmail how to retrieve mail from myisp.com and distribute it to fred and chris: poll myisp.com protocol POP3 localdomains myexample.com no dns no enevelope user pseudouser with password pseudouserpassword to fred chris here 2. move the .fetchmailrc file into a place that is publicly owned ans easily accessed by the superuser root. We suggest moving it into file /usr/local/etc/fetchmail.rc, but you may prefer to keep it elsewhere. prepare a script to invoke fetchmail. we suggest that it read as follows: /usr/bin/fetchmail -f /usr/local/etc/fetchmail.rc -syslog