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Filtering Spam/Porn on Exchange, thoughts/advice

We are having a problem where our current filter, Xwall is not catching a significant # of pornographic emails to a few users.  I am looking to see if this is a common problem with xwall, and if users have advice on a better filter or configuration. I've heard some about Vamsoft's Open Relay Filter and a few others.  And I'm wanting to get opinions.  Also if people are having good success with Xwall, maybe a link to tips for configuring xwall to better catch porn.  We haven't been having much problem with spam, but porn seems to be especially tricky and keyword blocking is not enough.  We have alot of very important emails that are sent daily and cannot afford to have them blocked, so its difficult to tighten down security.
Thanks Guys,

Ryan
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Ryan_81
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Ryan_81
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OneHumpCommented:
Spam filters can be pretty subjective.  I work for a fortune 10 company and we use a product called Tumbleweed SecureMail along with their Dynamic Anti-spam Service.

I like it because it's a managed service which requires little input from us.  Our reported false positives are about 1 in 10 million delivered messages.  Our administrtion time is about one hour per month for maintenance.  It's reliable and catches just about all of our spam.

I have evaluated most of the big players in this space and believe no one comes close to SecureMail.  I think they changed the name to Tumbleweed Email Firewall recently.

OneHump
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Ryan_81Author Commented:
Thanks OneHump.  Looking into this a little bit, it sounds like Tumbleweed is an awesome product, but probably far out of our budget range.  I couldn't get any pricing info off their website but our company consists of only about 100 users at this point and i don't think it could be fit into a budget.  I should have specified that in the original post.  I'd like to hear the actual pricing info though, if you happen to know.
Thanks,

Ryan
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OneHumpCommented:
I can't publish their pricing because it's private info.  I would give them a call.  They have options for smallers shops.  I think you could get an appliance all loaded up for less than $10,000 + maintenance.  That includes the server and all software.  It's a good deal.

OneHump
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Ryan_81Author Commented:
I posted about this but inadvertantly forgot the link:

http://www.experts-exchange.com/Community_Support/Q_20990155.html

I'd like to give OneHump half the points for his help.

Ryan
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