Milter-greylist

wrote on Wed, 5 Apr 2006 23:58:27 +0200:

> Filtering on reverse DNS name with three 0-255 numbers sounds therefore 
> a good idea.

Very shortly you will see that there is *lots* of dynamic IP space which 
will not fit that scheme at all. Or they don't have PTR records at all.  
Also, there are already very good RBLs which contain dynamic IP space, 
f.i. SORBS has a lot of them and they are very reliable.

Kai

-- 
Kai Sch\ufffdtzl, Berlin, Germany
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