Hello,
I came cross another small issue.. but in this case quite importand:
When I use loadbalancer to balance our SMTP the anti-spam actually thinks the
loadbalancer send the email.
Here's the mail headers WITH Loadbalancer:
Received: from col0-omc3-s2.col0.hotmail.com (192.168.0.34) by
MAIL2.mail4ce.com (192.168.0.35) with Microsoft SMTP Server id 14.1.355.2;
Tue, 6 Dec 2011 18:42:00 +0100
Received: from col0-omc3-s2.col0.hotmail.com ([192.168.0.81]
helo=col0-omc3-s2.col0.hotmail.com) by spam.mail4ce.com with
ESMTP (2.1.2); 6
Dec 2011 17:42:06 +0000
Received: from COL116-W27 ([65.55.34.135]) by col0-omc3-s2.col0.hotmail.com
with Microsoft SMTPSVC(6.0.3790.4675); Tue, 6 Dec 2011 09:42:04 -0800
X-Assp-Message/IP-Score: 10 (PTR missing)
X-Assp-ID: spam.mail4ce.com m1-93326-06050
X-Assp-Detected-RIP: 88.159.83.162, 65.55.34.135
X-Assp-Source-IP: 88.159.83.162
Mailheaders WITHOUT loadbalancer:
Received: from col0-omc3-s6.col0.hotmail.com (192.168.0.34) by
MAIL2.mail4ce.com (192.168.0.35) with Microsoft SMTP Server id 14.1.355.2;
Wed, 7 Dec 2011 06:54:14 +0100
Received: from col0-omc3-s6.col0.hotmail.com ([65.55.34.144]
helo=col0-omc3-s6.col0.hotmail.com) by spam.mail4ce.com with
ESMTP (2.1.2); 7
Dec 2011 05:54:20 +0000
Received: from COL116-W16 ([65.55.34.136]) by col0-omc3-s6.col0.hotmail.com
with Microsoft SMTPSVC(6.0.3790.4675); Tue, 6 Dec 2011 21:54:19 -0800
X-Assp-Message/IP-Score: -10 (SPF pass)
X-Assp-ID: spam.mail4ce.com m1-37260-12158
X-Assp-Detected-RIP: 113.90.23.123, 65.55.34.136
X-Assp-Source-IP: 113.90.23.123
Explenation of ip's:
192.168.0.34 = Anti-spam Gateway (primary)
192.168.0.35 = Microsoft Exchange Cluster (with Windows NLB for CAS)
192.168.0.81 = zenLoadbalancer (local)
88.159.83.162 = zenloadbalancer (External)
Now as you can understand.. for an anti-spam gateway it's VITAL to receive the
real originating ip.
Is there a way to solve this with Loadbalancer?
Regards,
Marco
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