help with majordomo

I'm really sorry to post but I have no choice, there is no admin link on the web page that tells me where else to go for problem resolution. I want to unsubscribe from the list but huey.classiccmp.org is not accepting mail for majordomo. Here is a copy of my session with smtp. Thanks for any help! Jared hjagnew:mba1:~/mail > telnet huey.classiccmp.org 25 Trying 209.145.140.36... Connected to huey.classiccmp.org. Escape character is '^]'. 220 huey.classiccmp.org ESMTP Sendmail 8.11.6/8.11.6; Mon, 1 Jul 2002 12:41:01 -0500 (CDT) HELO mba1.mba-consulting.com 250 huey.classiccmp.org Hello hjagnew(a)mba1.mba-consulting.com [207.154.57.74], pleased to meet you MAIL FROM: hjagnew(a)mba1.mba-consulting.com 250 2.1.0 hjagnew(a)mba1.mba-consulting.com... Sender ok RCPT To: majordomo(a)classiccmp.org 550 5.1.1 majordomo(a)classiccmp.org... User unknown quit 221 2.0.0 huey.classiccmp.org closing connection Connection closed by foreign host.