Dspam effectiveness

[Jamon Camisso]

On 02/08/13 10:29 AM, staticsafe wrote:
> On Fri, Aug 02, 2013 at 10:23:17AM -0400, William Muriithi wrote:
>> Curious, anyone here have tried both dspam and SpamAssassin? Just curious
>> if its worth trying dspam. From Wikipedia, it don't seem such effective,
>> but have meet people who imply its far better than SpamAssassin.
>>
>> Haven't been following either through mailing list and there isn't a lot of
>> recent discussion of the topic which is important considering dspam seem to
>> have been sold a number of times.
> 
> I took a brief look at dspam when implementing my mail server's antispam
> system, but the documentation isn't that great, so I stuck with amavisd
> (which uses spamassassin libraries for antispam).

There are a few techniques that you can use before you even accept a
message. I use a combination of Postscreen, remote block lists, and
greylisting. I don't check inbound DKIM/SPF records, but those are
useful if you want to use spamassassin as they are a good indicator of a
valid message.

Take a look here for more info on these tools:
https://workaround.org/book/export/html/384

Postscreen is relatively new but is very effective on a high volume mail
server. http://www.postfix.org/POSTSCREEN_README.html

Cheers, Jamon
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