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Re: Commecial vs fairness (was: spam support)
- Date: Fri, 15 Feb 2002 10:43:10 +0000
At 10:41 am +0100 (GMT) 15/2/02, Anne Marcel Roorda wrote:
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.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.
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
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