On Thu, Nov 30, 2006, George Ascione wrote:
>> And therein lies the rub. I think the solution is to apply
>> greylisting
>> selectively rather that to everyone. Suppose that you only applied
>> greylisting to hosts that:
>> Have bad RDNS
>> In home/dynamic IP ranges
>> Fail and header test
>> Has any slightly weird HELO
>> Mail From:<>
>> Listed in Blacklists like Spamcop that are not good enough to block on
>> What that you will probably block almost as much spam without
>> the delays.
> In its simplest form this is a fantastic idea, thank you. Of course you
> would want to greylist given the fact that you have a reason to do so. I am
> going to immediately try to figure out how to set up the ACL to try this
> out.
Create a separate ACL for testing if the host should be greylisted,
returning accept and deny depending on the predicate.
Then, use your greylisting as usual:
defer acl = acl_should_greylist
condition = your greylisting condition
