On Tue, 18 May 2004 16:13:20 EDT, Todd Vierling said: > On Tue, 18 May 2004 [EMAIL PROTECTED] wrote: > > : Yes, it *would* be nice if everybody in the world was able to DTRT on > : their outward-facing gateway and send back an immediate 550 on a RCPT TO: > : in order to stop stuff right up front. However, this implies getting > : buy-in and resources of all the appropriate people. > > Blocking outbound mail from such entities is a pretty good way to get > buy-in. (Yes, there's a DNSBL in work to enumerate such systems.)
When it gets built, will it list AOL.COM for not rejecting at the original RCPT TO? Or Hotmail.com? (Consider the following 2 pieces of mail - mail comes in from someplace with a From: @aol.com, our Listserv tries to process the command (which was actually spam, but it's hard to tell that until you try to handle it), and send the response back... notice that AOL didn't 550 my mail, but accepted and bounced it. Similarly for the hotmail.com mail - the spam comes in, and they accept-and-bounce our response rather than 550 it (although to be fair, they usually DO manage to 550 this stuff). Yes, it's generally a good idea - but not one that everybody can carry out all the time. You don't like it, take it up with the AOL and Hotmail guys, not me, OK? :)
--- Begin Message ---The original message was received at Mon, 17 May 2004 04:56:55 -0400 (EDT) from listserv.vt.edu [198.82.161.192] *** ATTENTION *** Your e-mail is being returned to you because there was a problem with its delivery. The address which was undeliverable is listed in the section labeled: "----- The following addresses had permanent fatal errors -----". The reason your mail is being returned to you is listed in the section labeled: "----- Transcript of Session Follows -----". The line beginning with "<<<" describes the specific reason your e-mail could not be delivered. The next line contains a second error message which is a general translation for other e-mail servers. Please direct further questions regarding this message to your e-mail administrator. --AOL Postmaster ----- The following addresses had permanent fatal errors ----- <[EMAIL PROTECTED]> ----- Transcript of session follows ----- ... while talking to air-xg01.mail.aol.com.: >>> RCPT To:<[EMAIL PROTECTED]> <<< 550 MAILBOX NOT FOUND 550 <[EMAIL PROTECTED]>... User unknownReporting-MTA: dns; rly-xg05.mx.aol.com Arrival-Date: Mon, 17 May 2004 04:56:55 -0400 (EDT) Final-Recipient: RFC822; [EMAIL PROTECTED] Action: failed Status: 5.1.1 Remote-MTA: DNS; air-xg01.mail.aol.com Diagnostic-Code: SMTP; 550 MAILBOX NOT FOUND Last-Attempt-Date: Mon, 17 May 2004 04:56:58 -0400 (EDT)Received: from listserv.vt.edu (listserv.vt.edu [198.82.161.192]) by rly-xg05.mx.aol.com (v99_r4.3) with ESMTP id MAILRELAYINXG56-47040a87e5628e; Mon, 17 May 2004 04:56:54 -0400 Received: from listserv.vt.edu (LOCALHOST [127.0.0.1]) by listserv.vt.edu (8.12.10/8.12.10/LISTSERV) with ESMTP id i4H85h43139864 for <[EMAIL PROTECTED]>; Mon, 17 May 2004 04:56:54 -0400 Date: Mon, 17 May 2004 04:56:54 -0400 From: "L-Soft list server at LISTSERV.VT.EDU (1.8e)" <[EMAIL PROTECTED]> Subject: Re: start making money To: [EMAIL PROTECTED] Message-ID: <[EMAIL PROTECTED]> X-AOL-IP: 198.82.161.192 X-AOL-SCOLL-SCORE: 0:XXX:XX X-AOL-SCOLL-URL_COUNT: 0
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--- Begin Message ---This is an automatically generated Delivery Status Notification. Delivery to the following recipients failed. [EMAIL PROTECTED]Reporting-MTA: dns;mc2-f24.hotmail.com Received-From-MTA: dns;listserv.vt.edu Arrival-Date: Sun, 11 Apr 2004 22:07:13 -0700 Original-Recipient: Final-Recipient: rfc822;[EMAIL PROTECTED] Action: failed Status: 5.0.0 Diagnostic-Code: smtp;550 Requested action not taken: mailbox unavailable--- Begin Message ---Your message dated Sun, 11 Apr 04 23:05:06 GMT with subject "�����η� ��û�ϼ��� 6�����̻�ٹ��� clrqy lhu iotgnuhca" has been submitted to the moderator of the TURBVIS list: [EMAIL PROTECTED]
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