Milter-greylist

On Sat, 12 Mar 2005 manu@... wrote:

>
> Alan Clifford <lists@...> wrote:
>
>> Thanks for the explanation.  I wouldn't like to comment on the message-id
>> proposal as I haven't had much experience using greylisting yet.  Or maybe
>> I will.  The example came from gmail which uses lots of ip addresses.  If
>> one put in the message-id, gmail's cycle through many ip numbers would
>> have to be done for each email.  Would that be a good thing?
>
> The right way of dealing with mail farms is to whitelist them. A message
> coming from Google pool will always hit your mailbox, regardless if it
> is spam or not. greylisting buys you nothing in this situation and it
> causes delays.
>

That moves the subject away from the original subject but no matter - it 
is interesting.  It does seem sensible but I wouldn't want to get into 
maintaining a list of ip's by hand.  So could this be done automatically? 
I guess it would be too liberal to white list an ip number on the basis of 
of one tuple being successful after one temporary reject.  But what about 
if, for example, an ip a.b.c.d were whitelisted for 'm' days if 'n' 
different tuples with that ip were successfully whitelisted?

-- 
Alan


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