Postgrey Options

Corey Edwards tensai at
Tue Feb 12 09:54:14 MST 2008

On Tue, 2008-02-12 at 09:13 -0700, Lonnie Olson wrote:
> Chris Carey wrote:
> > What configuration options are you all using? I have the delay set to
> > 1 minute (I believe the default is 5 minutes). Do you find that a
> > longer delay actually helps significantly more? From what I remember
> > in the documentation, the theory is that in that delay time, the
> > chances of the spamming source getting put on a blacklist increases.
> > This way, when the message finally makes it through, its finally on a
> > blacklist and spamassassin has a better chance of catching spam. Do
> > you find this to be the case?
> Since greylisting is to keep spammers out, who don't retry at all, any 
> delay greater than 5 seconds should be good enough.

You'd think so, but I have seen spammers who retry. It would be
interesting to do an analysis of it but I've never quite been that
motivated. I can say that after I added greylisting, my spam levels have
dropped off quite a bit. It's worth the wait to me.


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