copeland# telnet mail.ece.gatech.edu 25 Trying 199.77.227.200... Connected to mail.ece.gatech.edu. Escape character is '^]'. 220 mail.ece.gatech.edu ESMTP Sendmail 8.12.10/8.12.10; Wed, 29 Sep 2004 15:35:55 -0400 (EDT) HELO 501 5.0.0 HELO requires domain address HELO jac0.csc.gatech.edu 250 mail.ece.gatech.edu Hello jac0.csc.gatech.edu [199.77.146.103], pleased to meet you MAIL FROM: 250 2.1.0 ... Sender ok RCPT TO: 250 2.1.5 ... Recipient ok DATA 354 Enter mail, end with "." on a line by itself This is a test of SNMP. John Copeland . 250 2.0.0 i8TJZtel025319 Message accepted for delivery QUIT 250 OK ^] telnet> quit Connection closed. ============ Received: from lchqmr01.lancope.com ([209.182.185.10]) by lchqex01.lancope.local with Microsoft SMTPSVC(6.0.3790.0); Wed, 29 Sep 2004 15:46:07 -0400 Received: from doom.electric.net (doom.electric.net [216.129.90.117]) by lchqmr01.lancope.com (Postfix) with ESMTP id E9B3DA581 for ; Wed, 29 Sep 2004 14:45:57 +0000 (UTC) Received: from root by doom.electric.net with emc1-ok (Exim 4.34) id 1CCkOs-0006HH-65 for jcopeland@lancope.com; Wed, 29 Sep 2004 12:46:06 -0700 Received: by emcmailer; Wed, 29 Sep 2004 12:46:06 -0700 Received: from mail.ece.gatech.edu ([199.77.227.200]) by doom.electric.net with esmtp (Exim 4.34) id 1CCkOq-0006DR-6N for jcopeland@lancope.com; Wed, 29 Sep 2004 12:46:05 -0700 Received: from localhost (bigzilla.ece.gatech.edu [130.207.225.103]) by mail.ece.gatech.edu (8.12.10/8.12.10) with ESMTP id i8TJk4mq026284 for ; Wed, 29 Sep 2004 15:46:04 -0400 (EDT) Received: from mail.ece.gatech.edu ([199.77.227.200]) by localhost (bigzilla.ece.gatech.edu [130.207.225.103]) (amavisd-new, port 10024) with LMTP id 14098-02-3 for ; Wed, 29 Sep 2004 15:45:35 -0400 (EDT) Received: from jac0.csc.gatech.edu (jac0.csc.gatech.edu [199.77.146.103]) by mail.ece.gatech.edu (8.12.10/8.12.10) with SMTP id i8TJZtel025319 for ; Wed, 29 Sep 2004 15:40:52 -0400 (EDT) Date: Wed, 29 Sep 2004 15:35:55 -0400 (EDT) From: copeland@ece.gatech.edu Message-Id: <200409291940.i8TJZtel025319@mail.ece.gatech.edu> X-Virus-Scanned: by amavisd-new at ece.gatech.edu X-Origin-IP: 199.77.227.200 X-Virus-Status: Scanned by sophos X-SPAM-Status: NO, 0.1 / 6.0 DCC [0.0] BAYES [33%] To: undisclosed-recipients:; Return-Path: copeland@ece.gatech.edu X-OriginalArrivalTime: 29 Sep 2004 19:46:07.0573 (UTC) FILETIME=[F67BD850:01C4A65C] This is a test of SNMP. John Copeland ============================== At the time the transmission channel is opened there is an exchange to ensure that the hosts are communicating with the hosts they think they are. The following two commands are used in transmission channel opening and closing: HELO QUIT In the HELO command the host sending the command identifies itself; the command may be interpreted as saying "Hello, i am ". DATAS: MAIL FROM: R: 250 OK S: RCPT TO: R: 250 OK S: RCPT TO: R: 550 No such user here S: RCPT TO: R: 250 OK S: DATA R: 354 Start mail input; end with . S: Blah blah blah... S: ...etc. etc. etc. S: . R: 250 OK