> On 20 Aug 2014, at 18:37, Jason White <[email protected]> wrote:
>
> Trent W. Buck <[email protected]> wrote:
>
>> These are all post-DATA. You should be rejecting as much as possible
>> BEFORE then, using postscreen, a null MX, a tarpit MX, and so on.
>
> I agree that this is preferable. I've also heard positive comments about
> grey-listing
full grey listing cab be a pain to use and debug. I've found that sleep 45 &&
reject unauth_pipelining to achieve much the same with less overhead. this ofc
applies to postfix only, apply as necessary
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