Hotmail is bouncing bugtraq mailing list emails from Yahoo

What really irks me about this is that I deliberately use gigantic, stupid MTAs like gmail and live mail to deliberately avoid this sort of garbage (deliberately). Those familiar with administrating large volume email can appreciate that you can perfectly configure your mail server and end up bounding all over the place because almost everyone with a mail server is not an actual email administrator and has no clue what they are doing. Email, like high school, is ultimately all about popularity. Even the least competent of email server owners will eventually get tech support to make sure google and microsoft can deliver to and receive from their Zimbra abomination.

At least that's what I figured until I started getting bounces like the one below. It seems Microsoft has decided that Security Focus mailing lists are too dangerous. To step up the oddity of this policy, bounces only occur when the originating MTA is with Yahoo. I can receive email directly from securityfocus.com. I can receive email from securityfocus.com when the originating mail server is a one-off IP address from Finland that is part of a DSL netblock. But Yahoo is a bridge too far. Stupid stupid stupid.

Return-Path: <>
Received: (qmail 22048 invoked from network); 15 Jul 2015 15:26:46 -0000
Received: from sf01mail1.securityfocus.com (HELO mail.securityfocus.com) (192.168.120.35)
by lists.securityfocus.com with SMTP; 15 Jul 2015 15:26:46 -0000
Received: (qmail 27445 invoked by alias); 15 Jul 2015 15:26:31 -0000
Received: (qmail 21710 invoked from network); 15 Jul 2015 15:26:06 -0000
Received: from sf01smtp2.securityfocus.com (192.168.120.34)
by mail.securityfocus.com with SMTP; 15 Jul 2015 15:26:06 -0000
Received: by sf01smtp2.securityfocus.com (Postfix)
id E771981455; Wed, 15 Jul 2015 10:31:59 -0700 (PDT)
Date: Wed, 15 Jul 2015 10:31:59 -0700 (PDT)
From: MAILER-DAEMON@securityfocus.com (Mail Delivery System)
Subject: Undelivered Mail Returned to Sender
To: bugtraq-return-55766-(redacted)=live.com@securityfocus.com
Auto-Submitted: auto-replied
MIME-Version: 1.0
Content-Type: multipart/report; report-type=delivery-status;
boundary="5D865812F6.1436981490/sf01smtp2.securityfocus.com"
Content-Transfer-Encoding: 8bit
Message-Id: <20150715173159 data-blogger-escaped-.e771981455="" data-blogger-escaped-sf01smtp2.securityfocus.com="">

This is a MIME-encapsulated message.

--5D865812F6.1436981490/sf01smtp2.securityfocus.com
Content-Description: Notification
Content-Type: text/plain; charset=us-ascii

This is the mail system at host sf01smtp2.securityfocus.com.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

The mail system

<(redacted)="" live.com="">: host mx4.hotmail.com[65.55.92.152] said: 550 5.7.0
(SNT004-MC2F10) Unfortunately, messages from (143.127.139.113) on behalf of
(yahoo.com) could not be delivered due to domain owner policy restrictions.
(in reply to end of DATA command)

--5D865812F6.1436981490/sf01smtp2.securityfocus.com
Content-Description: Delivery report
Content-Type: message/delivery-status

Reporting-MTA: dns; sf01smtp2.securityfocus.com
X-Postfix-Queue-ID: 5D865812F6
X-Postfix-Sender: rfc822; (redacted)@securityfocus.com
Arrival-Date: Wed, 15 Jul 2015 10:18:42 -0700 (PDT)

Final-Recipient: rfc822; (redacted)@live.com
Action: failed
Status: 5.7.0
Remote-MTA: dns; mx4.hotmail.com
Diagnostic-Code: smtp; 550 5.7.0 (SNT004-MC2F10) Unfortunately, messages from
(143.127.139.113) on behalf of (yahoo.com) could not be delivered due to
domain owner policy restrictions.

--5D865812F6.1436981490/sf01smtp2.securityfocus.com
Content-Description: Undelivered Message
Content-Type: message/rfc822
Content-Transfer-Encoding: 8bit

Received: from lists.securityfocus.com (lists.securityfocus.com [192.168.120.36])
by sf01smtp2.securityfocus.com (Postfix) with QMQP
id 5D865812F6; Wed, 15 Jul 2015 10:18:42 -0700 (PDT)
Precedence: bulk
(redacted)
Delivered-To: mailing list (redacted)@securityfocus.com
Delivered-To: moderator for (redacted)@securityfocus.com
Received: (qmail 9417 invoked from network); 15 Jul 2015 10:14:32 -0000
Date: Wed, 15 Jul 2015 10:14:31 GMT
Message-Id: <201507151014 data-blogger-escaped-.t6faevnw013232="" data-blogger-escaped-sf01web2.securityfocus.com="">
Content-Type: text/plain
Content-Disposition: inline
Content-Transfer-Encoding: binary
MIME-Version: 1.0
X-Mailer: MIME-tools 5.420 (Entity 5.420)
From: (redacted)@yahoo.com
To: (redacted)@securityfocus.com
Subject: XSS vulnerability in OFBiz forms