[Sqlgrey-users] frontbridge.net

[Daniel J M. <dan...@au...>]

Microsoft's Hosted Exchange Services appear to sit behind a set of
postfix boxes with the name frontbridge.net.  Companies that use these
servers have their messages sent from random servers.  It does not
appear to retry beyond checking multiple MX records. I have added
*.frontbridge.net to my /etc/sqlgrey/clients_fqdn_whitelist.local file.

I really think it is funny that Microsoft front-ends their boxes with
postfix, as can be seen in these headers:

Microsoft Mail Internet Headers Version 2.0

Received: from sa.austinenergy.com ([10.10.10.3]) by smtp.austinenergy.com with Microsoft SMTPSVC(6.0.3790.1830);

             Mon, 9 Apr 2007 09:39:06 -0500

Received: from localhost (sa.austinenergy.com [127.0.0.1])

            by sa.austinenergy.com (Postfix) with ESMTP id 6ADED4B

            for <Bar...@au...>; Mon,  9 Apr 2007 09:39:05 -0500 (CDT)

X-Virus-Scanned: amavisd-new at austinenergy.com

X-Spam-Score: 0.733

X-Spam-Level: 

X-Spam-Status: No, score=0.733 tagged_above=-999 required=4.5

            tests=[AWL=-0.093, EXTRA_MPART_TYPE=0.815, HTML_MESSAGE=0.001,

            RELAYCOUNTRY_US=0.01]

Received: from sa.austinenergy.com ([127.0.0.1])

            by localhost (sa.austinenergy.com [127.0.0.1]) (amavisd-new, port 10025)

            with LMTP id 5kfoyvddosXj for <Bar...@au...>;

            Mon,  9 Apr 2007 09:39:01 -0500 (CDT)

X-Greylist: from auto-whitelisted by SQLgrey-1.6.6

Received: from outbound2-cpk-R.bigfish.com (outbound-cpk.frontbridge.com [207.46.163.16])

            by sa.austinenergy.com (Postfix) with ESMTP id 18F0E19

            for <Bar...@au...>; Mon,  9 Apr 2007 09:39:01 -0500 (CDT)

Received: from outbound2-cpk.bigfish.com (localhost [127.0.0.1])

            by outbound2-cpk-R.bigfish.com (Postfix) with ESMTP id CC3BF421FB2

            for <Bar...@au...>; Mon,  9 Apr 2007 14:37:24 +0000 (UTC)

Received: from mail59-cpk-R.bigfish.com (unknown [10.2.40.3])

            by outbound2-cpk.bigfish.com (Postfix) with ESMTP id C969120804D

            for <Bar...@au...>; Mon,  9 Apr 2007 14:37:24 +0000 (UTC)

Received: from mail59-cpk (localhost [127.0.0.1])

            by mail59-cpk-R.bigfish.com (Postfix) with ESMTP id 47A031100C6

            for <Bar...@au...>; Mon,  9 Apr 2007 14:37:48 +0000 (UTC)

X-BigFish: VP

Received: by mail59-cpk (MessageSwitch) id 1176129467833765_22884; Mon,  9 Apr 2007 14:37:47 +0000 (UCT)

Received: from USFOXSRVXCH236.ipscorp.invensys.com (unknown [65.204.211.16])

            (using TLSv1 with cipher RC4-MD5 (128/128 bits))

            (No client certificate requested)

            by mail59-cpk.bigfish.com (Postfix) with ESMTP id 35E3D918052

            for <Bar...@au...>; Mon,  9 Apr 2007 14:37:47 +0000 (UTC)

Received: from USFOXSRVXCH232.ipscorp.invensys.com ([10.155.18.232]) by USFOXSRVXCH236.ipscorp.invensys.com with Microsoft SMTPSVC(6.0.3790.1830);

             Mon, 9 Apr 2007 10:37:46 -0400
-- 
Daniel J McDonald, CCIE # 2495, CISSP # 78281, CNX
Austin Energy
http://www.austinenergy.com