Re: Commecial vs fairness (was: spam support)

[Steve Linford <]

At 10:41 am +0100 (GMT) 15/2/02, Anne Marcel Roorda wrote:
>    Using a blacklist to force compliance with some perception of normality
>  is a double edged sword. It may work, but if the blacklist is not cleaned
>  up in time it will collect innocent parties. Once enough innocent parties
>  have been collected people will stop using the blacklist.
Except I'm talking of local MTA blacklists which normally do not get 
cleaned up except every few months or years. If you find your IP 
unfairly blacklisted by local MTA admins then you have to contact the 
admin of every MTA to get it removed from each.

DNSBLs such as RBL, SBL, etc., are a different thing as the data in a 
DNSBL is changing all the time to block new problems and unblock 
solved problems, so IPs do not remain 'caught' on DNSBLs. However 
only something like 30% of ISPs use DNSBLs, the rest rely on locally 
maintained blacklists, maintained by ISP admins who don't have either 
the time to dedicate to the problem nor the knowledge of spam outfit 
movements.

--
  Steve Linford
  The Spamhaus Project
  http://www.spamhaus.org