on Tue, May 18, 2004 at 11:37:49PM +0100, Chris Edwards wrote:
Much as I hate to come to their defence, hotmail rejects unknown users during the dialog, and has done so for as long as I can remember.
That may be so. But I've got 208 hotmail.com hosts "back"listed for backscatter dreck such as this: --8<----8<----8<-- From MAILER-DAEMON Wed Apr 14 16:17:33 2004 Received: from mc6-s2.hotmail.com (mc6-s2.bay6.hotmail.com [65.54.251.76]) by serrano.hesketh.net (8.12.9p1/8.12.8/NO-UCE-NO-UBE-NO-spam) with ESMTP id i3EKHVAh005383 for <rbghvavo@munged.com>; Wed, 14 Apr 2004 16:17:32 -0400 Received: from mc6-f11.hotmail.com ([65.54.252.147]) by mc6-s2.hotmail.com with Microsoft SMTPSVC(5.0.2195.6713); Wed, 14 Apr 2004 13:17:36 -0700 From: postmaster@mail.hotmail.com To: rbghvavo@munged.com Date: Wed, 14 Apr 2004 13:14:29 -0700 MIME-Version: 1.0 Content-Type: multipart/report; report-type=delivery-status; boundary="9B095B5ADSN=_01C42243E592A444000006B1mc6?f11.hotmail." Message-ID: <EZF98vvwN00000591@mc6-f11.hotmail.com> Subject: Delivery Status Notification (Failure) X-OriginalArrivalTime: 14 Apr 2004 20:17:36.0210 (UTC) FILETIME=[86CCFB20:01C4225D] Content-Length: 7430 Lines: 142 This is a MIME-formatted message. Portions of this message may be unreadable without a MIME-capable mail program. --9B095B5ADSN=_01C42243E592A444000006B1mc6?f11.hotmail. Content-Type: text/plain; charset=unicode-1-1-utf-7 This is an automatically generated Delivery Status Notification. Delivery to the following recipients failed. cloud_zero1@hotmail.com --9B095B5ADSN=_01C42243E592A444000006B1mc6?f11.hotmail. Content-Type: message/delivery-status Reporting-MTA: dns;mc6-f11.hotmail.com Received-From-MTA: dns;accsports.com Arrival-Date: Wed, 14 Apr 2004 13:14:19 -0700 Final-Recipient: rfc822;cloud_zero1@hotmail.com Action: failed Status: 5.2.3 Diagnostic-Code: smtp;552 5.2.3 This message is larger than the current system limit or the recipient's mailbox is full. Create a shorter message body or remove attachments and try sending it again. --8<----8<----8<-- Granted, it's a DSN for an over-quota user, not a nonexistent user, but the rejection happens after accept, and the DNS goes to the forged sender. Steve -- hesketh.com/inc. v: +1(919)834-2552 f: +1(919)834-2554 w: http://hesketh.com Buy "Cascading Style Sheets: Separating Content from Presentation, 2/e" today! http://www.amazon.com/exec/obidos/ASIN/159059231X/heskecominc-20/ref=nosim/