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Smart Host

Posted on 2004-10-07
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Last Modified: 2008-03-10
Hi guys,

I have an Exchange Server on two cluster nodes. I was thinking about Smart Host, and I was hoping that it would do the following:

1. All Email that shoulb be sent out to the internet gets forwarded to this Smart Host.
2. All Email that is coming to our email system goes first to the Smart Host, goes thru virus Scan and Spam filtering then gets forwarded to our email server.

Is that possible, if yes how?

Any help or comment is highly appreciated

Thanks guys
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Question by:mjalmassud
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by:munichpostman
ID: 12256353
Hi there are a number of ways of doing this.

A popular smart host solution is Mailsweeper from Clearswift. You would buy yourself a windows 2003 server and install Mailsweeper on it. Install the box in your DMZ and get the MX record of your domain to point to this box. Mailsweeper allow you to install a third party virus scanner such as Mcaffee or Sophos on it to handle virus scanning. It also has a Spam plug-in called spam active, and offers feature such adding disclaimer to outbound mail and the ability to block or quarantine executables, scripts, pif and scr file etc. It is an extremely powerful tool.

www.clearswift.com

NetIQ offer a tool which offers similar functionality called Mailmarshall.

www.netiq.com

you could also look at running postfix with or sophospuremessage.

Another solution which is becoming quite popular is to buy an appliance such as Ironport, which offers Brightmail for spam filtering Symantec virus scanning.
www.ironport.com

you could also look out outsourcing all of your spamfiltering/relaying and virus scanning to a provider such as Postini who offer incredibly competitive pricing and a great service.

www. postini.com

Whichever solution you choose, you simply need to configure your SMTP connector to forward all mails to the ipaddress of the smart host. Your smarthost would be configured to relay all mails to your bridgehead Exchange Server, which should be a system other than your cluster.

Hope this helps.
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by:mjalmassud
ID: 12256737
munichpostman thanks a lot for taking the time to write this very nice comment.

I am really trying not to use any software or hardware. I just need a third party whom I will be forwarding the traffice from and to, such as our ISP or so.

thanks man
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munichpostman earned 500 total points
ID: 12257386
Then I recommend that you talk to the good folks at Postini or frontbridge at www.frontbridge.com

both offer excellent full managed solutions.

There are also a lot of ISP's who use Brightmail and Postini to scan all mails for their customers for spam and viruses.

When choosing an ISP, make sure that they tell you which vendor solution they use.

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by:mjalmassud
ID: 12258282
that's exactly what I was getting ready to do.

thanks man
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