Anti Spam Landscape

[Kimball Larsen]

On Jul 17, 2007, at 6:13 PM, Jonathan Duncan wrote:

>
> On 17 Jul 2007, at 16:47, Kimball Larsen wrote:
>
>> So, I'm setting up a new mail server from scratch, using ubuntu on  
>> a new, fast server.
>>
>> In the past I've used spamassassin + postgrey for anti-spam, but  
>> lately it's not keeping up anymore.  I've run across DSpam, and  
>> wondering if it's any better.
>>
>> Anyone have a strong opinion one way or the other?
>>
>> Or, is there another option?
>>
>
> Are you willing to try a "challenge-response" option?
>
> http://en.wikipedia.org/wiki/Challenge-response_spam_filtering

For my personal domain, maybe - but this is for a business domain,  
and we get a large enough number of legitimate emails from unknown  
sources (customers) that the extra effort involved is probably not  
going to pass muster with the guys in charge.

Thanks!

-- Kimball