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Anti-Spam Gateway

Hi all;

I have a customer running Microsoft Exchange 2003 behind a Cisco PIX 501 Firewall.  This customer has been getting hit heavily with spam and relay attempts thus loading up the SMTP queue.  I am looking into installing some sort of gateway between the firewall and the Exchange server that will filter spam and perform DNS Blacklist lookups then forward good email to the exchange server.  I am having a difficult time finding a devise to do this that is not a full fledged firewall and that does DNS blacklist lookups.  This customer only has 10 users so i do not need a $4K solution, looking for something between $300 and $700ish.  Any suggestions would be great!
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aungelbach
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aungelbach
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3 Solutions
 
hstilesCommented:
There are a few choices, but for your requirements, I would reccomend GFI Mail Essentials and, if you/the client would like additional protection, MailSecurity

See below for pricing

http://www.gfi.com/pricing/pricelist.aspx?product=msec&curr=usd&lang=en

You would need a PC or very basic server to host the server.

Is the client running Antivirus on the Exchange server?

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aungelbachAuthor Commented:
Yes they are running symantec corporate.  Their licensing may include the antivirus for gateways but i want to stick to a network devise box rather than a second windows machine.
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hstilesCommented:
Hmm.

The problem is that anti-spam appliances, such as the Barracuda appliance are meant for much higher levels of traffic than your ten users would receive and are priced accordingly.  The entry level Barracuda appliance handles 1 - 500 users.  Overkill.

The other alternative is an anti spam solution that sits on your server.
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SembeeCommented:
Take a look at ORF from Vamsoft. That is priced on a per server basis. I have it on two sites and it is working very well.

Simon.
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aungelbachAuthor Commented:
does this product do DNS blacklist lookups?
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SembeeCommented:
I believe so. Although I am not a great lover of using blacklists that I don't control. I have had too many clients get blacklisted for minor problems while major spammers get away with sending their stuff.

Simon.
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Dilan77Commented:
Have you enabled the Intelligent Message Filter on the Exchange server (comes with Service Pack 2)...that'll get rid of a large chunk of it, but won't do the DNS lookups etc.
For the 'proper' tool, someone did mention that Trend Micro were doing an 'express' version of their Interscan Messaging Suite for less than 10 users. Worth checking out..

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