A little more spam filtering

re: A little more spam filtering

Steve L — Mon, 13 Aug 2007 21:53:17 GMT

Are these stats in here back to when? Since we installed exchange or the IMF filter?

Steve

re: A little more spam filtering

Al Iverson — Mon, 13 Aug 2007 21:46:38 GMT

In reply to Chris's comments, I would say: Outright blocking certainly does have the potential side effect of clobbering valid messages, especially if one chooses poorly with regard to what blacklists to use. But, it's also a helpful thing so that people trying to send to you can be told that you're blocking their mail, instead of dumping it into a quarantine that might never be checked. In other words, it has the potential to help drive the reform of a blacklisted sender, which is what makes a blacklist like Spamhaus successful at what they do -- run afoul, get blacklisted, fix the practice, no longer run afoul, get unblacklisted, stay unblacklisted.

re: A little more spam filtering

Chris Knight — Mon, 13 Aug 2007 11:22:38 GMT

There are two things I dislike about the Connection Filtering in Exchange.

The first is a lack of logging information. Performance counters are of no use when you're trying to diagnose a message delivery problem.

The second is the inability to change it from rejecting a connection to either adding a value to the spam score or to quarantining the message to a quarantine folder.

I find outright blocking to be more problem than it's worth. There's always a valid message that gets clobbered, and the perceived benefits of blocking don't outweigh the blocking of valid e-mails.

Pricing of Spamhaus

E-Bitz - SBS MVP the Official Blog of the SBS "Diva" — Mon, 13 Aug 2007 06:25:34 GMT

Follow up to msmvps.com/.../a-little-more-spam-filtering.aspx Someone

wehuberconsultingllc.com » Blog Archive » A little more spam filtering

wehuberconsultingllc.com » Blog Archive » A little more spam filtering — Mon, 13 Aug 2007 02:34:49 GMT

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re: A little more spam filtering

Rich Lusk — Mon, 13 Aug 2007 02:18:05 GMT

Susan, you and Les don't mention any fees that are associated with this method. Is there any? I get the idea from their websites that there are fees but doesn't mention adding them to a Exchange Server.

Thanks.

re: A little more spam filtering

fatjoe — Sun, 12 Aug 2007 20:20:37 GMT

You can set up perfmon counters to see how effective it is - see the

attachment. --- Where's the attachment?

I presumed this would be straight forward but my performance monitor doesn't contain the shown counters.

re: A little more spam filtering

Russ SBITS.Biz — Sun, 12 Aug 2007 17:45:30 GMT

In Addition:

I like to put a Custom Error Messsage, just in case it's a LEGIT Business that got rejected.

"The IP Address %0 was rejected by the RealTime Blocklist provider %2 Please call our office www.domain.com."