On 11/26/03 1:45 AM, "Don" <dnrlinux@xxxxxxxxxx> spoke thusly: > I'm trying to set up sendmail so I can receive e-mail directly, in > addition to using my isp supplied e-mail. > > My biggest concern is that I don't want people on the internet to be > able to use my smtp server as a means to send mail to people with the > result making it look like it me... I think that's called "relaying"... > > Anyway... can anybody recommend any good books on setting up sendmail? > Like most people would say, O'Reily's 'Bat' book on Sendmail is really usefull, and it is in a reference sort of way. Their companion 'Sendmail Cookbook' is a must have too as it contains specific examples. As a new Sys Admin., I just jumped in to Sendmail. I had heard the arguments from others that sendmail sucked, was too hard, had security issues, etc. Try Postfix, Qmail, etc. instead. Well, Sendmail did have security issues--several years ago, in its infancy! Its sendmail.cf file is very difficult to configure. That¹s why everything is done in the sendmail.mc file where things are much more manageable! I have yet to experience any issues and have been up and running for two years now. My main issue really is trying to instead manage our companies spam problem. Anyway.... By default, Sendmail will not allow relaying. The sendmail.mc, usually in /etc/mail, has a line that starts: DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl Like the note, in the file, above this line says: 'this causes Sendmail to only listen on the loopback address'. Commenting this line out will cause Sendmail to listen on all interfaces. (don't forget to run 'make' and restart your mail server) A few helpful links would be: Setting up a mail gateway: (this talks about a lot more than mail, but is relevant to getting your mail from an ISP as well. So you'll want to look at the mail stuff specifically) http://www.pcquest.com/archive/articledetail.asp?arid=25270 Setting up a mailserver: http://www.pcquest.com/content/linux/handson/101071103.asp A really helpful link is Peter Harrison's website, (I suggest purchasing his book(s), it's only available in pdf format. The cost is only $5.00 (per book) and worth it! He has more info in the pdf than on his website. The pdf also has examples of the full config files.) Note: I'm not pushing his book, I just found it really helpful at times. http://www.linuxhomenetworking.com/linux-hn/sendmail.htm You can see what else he has at www.linuxhomenetworking.com. Anyway, I hope this helps. Craig D. -- Craig Daters (craig@xxxxxxxxxxxxx) Systems Administrator West Press Printing & Copying 1663 West Grant Road Tucson, Arizona 85745-1433 USA Tel: 520-624-4939 Fax: 520-624-2715 www.westpress.com --
