>> Is anyone using this greylisting implementation?
>>
>> http://wiki.exim.org/DbLessGreyListingRun
>>
>
>
> Interesting implementation though I think some hashing would have to be done
> on the IP address to separate the directories otherwise it's not scalable
> (filesystem limits within a single directory and the management thereof).
> Also, not having the data in a database means only one server could access
> it unless you wanted NFS shares, but then you are relying on one box.
>
> Nice though..
Would it be possible to do this with a ramdisk instead of the actual
disk? I just think that would save an awful lot of disk IO. Is there
a limit of the number of files you can have on a ramdisk? 30k - 80k
files an issue on say a 16Mbyte ramdisk?
Matt