[Gross] false positives

[Henrik Krohns]

On Thu, Dec 18, 2008 at 08:38:32AM -0600, Jesse Thompson wrote:
> Imri Zvik wrote:
>> On Thursday 18 December 2008 16:18:54 Jesse Thompson wrote:
>>> Imri Zvik wrote:
>>>> We would like to keep a match for at least a week ~
>>> I'm curious... what's your reasoning?
>> Some users complained about the delay - if the triplet is kept for more 
>> time, the less it would be noticeable. I'm an ISP, so I need to 
>> actually listen to what my users has to say :)
>
> It can't be as bad as an EDU, when most people know how to complain  
> directly to the CIO.  :-)
>
> You must be doing traditional greylisting, instead of using DNSBLs to  
> determine which IPs to greylist.

It seems pretty clear to me that grossd is missing auto-whitelist feature.
What's the point greylisting legimate retrying hosts, that might only send
once a day or so?