Hello Graeme, Graeme Fowler <[email protected]> (Do 17 Sep 2009 23:40:16 CEST): > On Thu, 2009-09-17 at 22:17 +0200, Heiko Schlittermann wrote: > > Comments? > > Only one: if you do this as detailed you will regularly delay mail which > arrives once every 24 hours. > > IMO, and in most greylisting implementations, once a sending host has > proved itself to be "well behaved" then there's no point making it wait > every 24 hours. All that will do is delay future mail.
I do not greylist based on the hosts behaviour but on the
sender->recpient relation. And this could be faked and should be checked
over and over.
If it would be based on sending hosts, you are right. But then I
have to count with delays from systems using several sending hosts for
the same message. But I think, this was discussed already up and down.
For the sender->recipient relation I can imagine updating the greylist
records each time the relation is used in the opposite direction, thus
not delaying the answer arriving within 24 hours.
Best regards from Dresden/Germany
Viele Grüße aus Dresden
Heiko Schlittermann
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