Leonardo Rodrigues Magalhães wrote:
>   
>    I would like to greylist connections that are trying to send messages 
> to unknown addresses. Today those connections receives 'unknown user' 
> and policyd never heard of them. I would like them to receive the Policy 
> Rejection because of greylist=new and, IF they returns, policyd would 
> give greylist=update and only then postfix would give 'unknown user'.

This is not going to slow down the amount of spam you get and
really won't stop dictionary attacks either. Set your hard limit
in Postfix to 5 or something similiar.

Cami

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