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03.25.2008 at 08:40PM PDT, ID: 23269401
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How to configure ISA firewall/Exchange 2007 SMTP connections to accept from Messagelabs range?

Asked by bigleon in MS Internet Security & Accel, Exchange Email Server, Simple Mail Transfer Protocol (SMTP)

Tags: Microsoft, ISA Server 2006 and Exchange Server 2007, ISA Server 2006 and Exchange Server 2007, How to lock down port 25 / SMTP connections

I have been given a deadline from Messagelabs to configure our firewall and/or email systems port 25/SMTP connections to accept from the existing and new IP ranges specified by Messagelabs.  Our MX records point to Messagelabs servers and they protect us with an antivirus and antispam service.  They cant provide help and their knowledgebase doesn't provide a guide.

We run MS Internet Security and Acceleration Server 2006 on one server and Exchange Server 2007 on another. Local Lan users access mail via MS Outlook and remote home users use Outlook Web Access.
Please describe how to lock down port 25/SMTP connections to accept only from a set of Messagelabs IP ranges. An idiots guide is appreciated. Thanks.

I attach a screencap of our current firewall policy.  I would accept any solution but I have read that it is better to configure just the ISA firewall only?Start Free Trial
Attachments:
 
security.GIF (65 KB) (File Type Details) 
Current firewall policy
Current firewall policy
 
 
Keywords: How to configure ISA firewall/Exchan…
Title
1 ISA Module for antispam and antivirus
2 ISA server service
3 Antivirus & Antispam
4 ISA Server Problem
5 ISA 2006 and Antivirus
6 ISA SERVER IS SENDING A LOT OF SA…
 
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[+][-]03.25.2008 at 11:24PM PDT, ID: 21209245

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[+][-]03.25.2008 at 11:54PM PDT, ID: 21209323

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[+][-]03.26.2008 at 02:04AM PDT, ID: 21209839

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About this solution

Zones: MS Internet Security & Accel, Exchange Email Server, Simple Mail Transfer Protocol (SMTP)
Tags: Microsoft, ISA Server 2006 and Exchange Server 2007, ISA Server 2006 and Exchange Server 2007, How to lock down port 25 / SMTP connections
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Solution Provided By: johan_strange
Participating Experts: 1
Solution Grade: A
 
 
[+][-]05.04.2008 at 01:46AM PDT, ID: 21495089

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[+][-]05.09.2008 at 06:04PM PDT, ID: 21537452

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