Hello, Everyone My problem is that the test mailing list that I am experimenting with will not send email to anyone who does not have an afolkey2.net email address. For clarification, I can send email from steve@xxxxxxxxxxxx to elizabethulrick@xxxxxxxxxxx and it arrives perfectly. But if I send email from elizabeth2@xxxxxxxxxxxx to elizabethulrick@xxxxxxxxxxx, it bombs with the error quoted later in this email. Before I contacted you with this, I gave this information in Mailman's FAQ a shot: http://www.python.org/cgi-bin/faqw-mm.py?req=show&file=faq03.014.htp I came the closest to fixing this with the following section from the above FAQ: 7) Logs. If you don't have any of the common problems above, then you should look for errors in your log files. First look for errors in your MTA log files. On Red Hat that would be in /var/log/maillog. I ran grep hotmail /var/maillog and I found items like the following: Jun 4 04:20:52 afolkey2 sendmail[13654]: k549KqM3013654: ruleset=check_rcpt, arg1=<ulricksteven@xxxxxxxxxxx>, relay=[192.168.1.1], reject=550 5.7.1 <ulricksteven@xxxxxxxxxxx>... Relaying denied. IP name lookup failed [192.168.1.1] Jun 4 04:23:41 afolkey2 sendmail[23876]: k549NfSJ023876: ruleset=check_rcpt, arg1=<ulricksteven@xxxxxxxxxxx>, relay=[192.168.1.1], reject=550 5.7.1 <ulricksteven@xxxxxxxxxxx>... Relaying denied. IP name lookup failed [192.168.1.1] Jun 4 04:23:53 afolkey2 sendmail[24877]: k549Npwr024832: to=<elizabethulrick@xxxxxxxxxxx>, ctladdr=<steve@xxxxxxxxxxxx> (500/500), delay=00:00:02, xdelay=00:00:01, mailer=esmtp, pri=91658, relay=mx2.hotmail.com. [65.54.244.40], dsn=2.0.0, stat=Sent ( <20060604042351.732d8bbd@xxxxxxxxxxxx> Queued mail for delivery) Jun 4 04:23:54 afolkey2 sendmail[25081]: k549NsSQ025081: ruleset=check_rcpt, arg1=<ulricksteven@xxxxxxxxxxx>, relay=[192.168.1.1], reject=550 5.7.1 <ulricksteven@xxxxxxxxxxx>... Relaying denied. IP name lookup failed [192.168.1.1] It's obvious (I think) that delivery failed because the server that I'm sending to could not look up my "IP name" Further than that, I am stumped as how to fix this. My IP address settings are configured to be gotten by dhcp (I am actually running "dnsmasq" instead of dhcpd itself. With dhcpd, the internet slowed to a relative crawl.) Before my recent reinstallation of Fedora Core 5, all of this worked perfectly. (except for dnsmasq, which I needed to start using since this last reinstall.) mailman-2.1.8-0.FC5.1 is the version of Mailman that I am running. It was installed by RPM when I installed FC5. And, my MTA is sendmail. As always, if you need further information, I will gladly provide it. Also, if you can give me a link in your FAQ that will fix this, that's cool too. To clarify, I am running the Mailman that comes with Fedora Core 5. Thank you, Steven P. Ulrick -- 04:25:56 up 1:09, 7 users, load average: 3.32, 2.22, 1.53 -- 04:50:43 up 1:34, 9 users, load average: 1.05, 1.01, 1.25 -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list