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Step-by-Step Guide: How to use ISA Server as an SMTP filter

Learn how to direct your inbound SMTP traffic to an ISA Server first to nab certain types of malicious messages and reduce the overall volume of SMTP mail that your Exchange server must process.

No sane administrator would ever run Microsoft Exchange Server without virus and spam protection -- but there are...

steps you can take to keep your antivirus and antispam applications from having to work so hard.

By directing your inbound SMTP traffic to a Microsoft Internet Security and Acceleration (ISA) Server first, you can nab certain types of malicious messages and reduce the overall volume of SMTP mail that your Exchange server must process.


Step-by-Step Guide: How to use ISA Server as an SMTP filter

 Home: Introduction
 Step 1: Installing the SMTP service
 Step 2: Configuring Internet Information Server
 Step 3: Installing ISA Server 2004
 Step 4: Creating an SMTP publishing rule
 Step 5: Creating a DNS publishing rule
 Step 6: Configuring the message screener
 Step 7: Changing your DNS server's MX record

ABOUT THE AUTHOR:   
Brien M. Posey, MCSE
Brien is a Microsoft Most Valuable Professional for his work with Windows 2000 Server and IIS. He has served as CIO for a nationwide chain of hospitals and was once in charge of IT security for Fort Knox. As a freelance technical writer, he has written for Microsoft, TechTarget, CNET, ZDNet, MSD2D, Relevant Technologies and other technology companies.

This was last published in August 2005

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What about simple mail transfer protocol  filter or message screener  you can install separately intercepts traffic that arrive on port commands and checks whether they are larger than they should be

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