[ppml] Blacklist, whitelist, DUL question

[Michael.Dillon at radianz.com]

I know that there are various address range blacklists that identify SPAM 
sources and that some people have whitelists of mail servers known to be 
clean. In both cases, these lists are making a somewhat moralistic 
statement about the address range.

Then there is the DUL which does not make a moralistic statement but 
merely identifies addresses used for dialup Internet connections.

Does anyone know of a list that identifies address ranges in which there 
are no mail servers? In other words, the range in question is used for 
network infrastructure or perhaps used for customers who have agreed not 
to set up Internet accessible mail servers in the range. I have some 
address ranges that should never contain mail servers which I would like 
to place in such a list so that people can reject email containing these 
addresses but I do not want these ranges to be part of a blacklist because 
of the taint associated with it. 

Ideally, the list would also be used to filter spam complaints as well so 
that if someone does receive SPAM containing a forged Received header then 
they will not send a complaint to the abuse address for these blocks.

-------------------------------------------------------
Michael Dillon
Network Product Engineering, Prescot St., London, UK
Mobile: +44 7900 823 672    Internet: michael.dillon at radianz.com
Phone: +44 20 7650 9493    Fax: +44 20 7650 9030