Since no one answered your question, I'll attempt to. Configuring sendmail is not necessarily an easy thing. There are many tomes written about the subject and I would recommend getting one PT two of them. If you open a file called sendmail.mc in the /etc/mail directory, you can follow through with the comments and follow with what they are saying. I would start with as brief a configuration as possible to make it work. Then you can tweak it as necessary. After you mess with the sendmail.mc file you will have to rebuild the actual sendmail.cf file. The sendmail.mc file is an abbreviated and more to the point file to deal with than the sendmail.cf. There is an engine called the m4 engine that will do this rebuilding for you. I am not sure if RH8 has this or not so you will have to check. If it doesn't, then I would refer to one of the manuals or docs. Once you have rebuilt the sendmail.cf file, restart sendmail: service sendmail restart (while logged in as su -). This will cause sendmail to reread the configuration file you just built and function accordingly. As far as pop3, you can check it from the GUI by clicking on the services selection and scrolling down to pop3. If it isn't running, click on it and hit start. If you would rather use the terminal then check in your /etc/inetd directory for the appropriate file and check to see if it was disabled. If it is, then enable it and restart inetd. This is only the surface as for sendmail to work, you have to also configure the aliases file (/etc/aliases) and make sure that all of the people whom you want to receive mail have user accounts setup. This is only a brief summary. You can check on the sendmail website (www.sendmail.org
) and other areas for more help. Linux documentation project is also another good source. As well as this forum here! But my first recommendation is to get a book. I would have to recommend the O'Reilly "Sendmail" as the most thorough. It helped me. If you have any other issues repost and we'll try to help. Good Luck!!!