Re: Recommended AntiSpam tool for Exchange (or AntiVirus Package that includes AntiSpam)

Hello mswlogo,

I like Trend Micro Client Server Messaging Security for SMB as an Exchange aware AV product; includes an anti spam component in addition to desktop and Exchange anti virus components. All products in the security suite are managed from a central console (web accessible from any system in a typical SBS network). It's certainly different from Symantec products.

With Trend Micro anti spam detection set to high with an action to move spam to a user's spam folder (they can manage the spam at their mailbox), and the below Exchange settings, I've found that most of the junk doesn't find a way to my inbox.

Recipient filtering: Filter recipients who are not in the directory.
Sender filtering: Drop connections on filter, filtering blank sender.
Intelligent Message Filter (Exchange SP2): Archive greater than 9. Junkmail on greater than 8.
Connection Filter enabled: I use zen.spamhaus.org with a custom error message.

For outbound stats, I typically set my SBS Monitoring and Reporting to email me every week the summary of mailbox activity (yes, it's a 2 week report, but you can tell it to email you data for the last two weeks every day if you want). It's not a perfect counter, but it is a good baseline.

It's possible that you might be interested in looking at a service that provides mail sanitation for your Exchange server. A service like www.exchangedefender.com might be worth looking at.

I hope that helps,

Jason



"mswlogo" <geomills@xxxxxxxxx> wrote in message news:1191283731.773559.107270@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Could folks recommend or comment on what they use to cover AntiSpam.
The standard stuff Exchange has doesn't cut it.

I'd really like to block early in the processing or email because it
gets into the database.
For example a friend of mine uses a tool that forces all email to be
resent once because most serious spammers can't afford to process
resends.

I'm leaning towards symantec only because I'm familiar and comfortable
with their software.

Also one case I'd like to cover is a user got a virus that was
spamming out and Verizon rightfully shutdown out outgoing smtp. I'd
really like an outgoing message count quota to cover this case. Which
seem trivial to implement and very effective (Verizon was even smart
enough to catch this).

.

Relevant Pages

  • Re: Configure e-mail Forwarding not to include SPAM
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  • Re: Best settings for Recipient Filtering?
    ... Who Are Not in the Active Directory" checkbox stops about 75% of the spam at ... Using the Connection Filter with the Spamhaus RBL and the Spamcop RBL ... > It doesn't matter which version of Windows Exchange is on. ... > one reason that recipient filtering is so useful. ...
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  • Re: SMTP 127.0.0.1
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    (microsoft.public.exchange.admin)
  • Re: Why cant ISPs stop spam/virus ?!
    ... I don't doubt that a small load of well designed spam can pass through. ... You need to get a decent ISP. ... The method of distribution is now thousands of Windows computers, ... You cannot filter by place of origin. ...
    (comp.os.linux.misc)
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