On Mon, 9 Feb 2004, Tim Aranki wrote:

> Verner,
> I think I understand what you are wanting now... spam-address.tab restricts
> mails based on the FROM:, not the IP of the connecting smtp server.  You
> want to deny delivery based on the DOMAIN of the delivering smtp server, not
> it's IP address, like smtp.ipmap.tab does.  
> 
> I think the short answer is: you can't do this.  You can restrict the
> domains IP range in smtp.ipmap.tab, but that is as close as you are going to
> get.  Alternatively, you may be able to write a filter that rejects the
> message after it has been delivered.
> 
> Today, there is no way, that I am aware of, to deny delivery of a message
> based on the transmitting server's domain name/suffix.

Implementing a block using the PTR record of the peer IP might be a good 
idea for 2.0. XMail already does the PTR lookup, so it should not cost 
much to do the extra step.



- Davide


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