[kwlug disc.] Greylisting for spam purposes

[Paul Kopacz]

Andrew Kohlsmith wrote:
> On Thursday 30 November 2006 16:09, Paul Kopacz wrote:
>   
>> The caveats listed here (http://en.wikipedia.org/wiki/Greylisting)
>> turned me off, specifically where they mention that mail sent from a
>> "farm" of servers with different IP addresses may not get delivered if a
>> different mail server sends the retry email.  I certainly wouldn't
>>     
>
> This *can* happen, yes, but in practice (I have been running Postgrey for the 
> past year or so on what I'd consider a high-volume mail server) this is the 
> least of your worries.  
What would be the most of my worries? ;)

I just realized that this probably wouldn't work for us anyways, as our 
office mail server is behind the campus mail server(s), over which I 
have, of course, no control.  I like the DNSBL idea, but I believe that 
it will not work for the same reason. 

Anyone have any experience (or opinions) on using something like Razor, 
Pyzor, or the DCC for spam catching?

Paul