nanog mailing list archives
Re: dnsbl's? - an informal survey
From: Jack Bates <jbates () brightok net>
Date: Fri, 30 May 2003 21:25:46 -0500
Mr. James W. Laferriere wrote: <snip>
White listing is NOT what was being discussed . Tho is can be adventagous in the right circumstances .
<snip>
And neither was Static addressing . Filtering was being discussed based on some unknown (to me probably others as well) methodology . Twyl , JimL
White listing comes with any blacklist. The blacklists in particular being discussed were the @dynamics, like the PDL and dynablock at easynet. Both lists quite clearly state how they build their lists and what they are designed to block (dynablock only takes out dialup, and PDL takes out all dynamic addressing).
Given the number of insecure client systems on dynamic addressing (proxy servers, trojans, etc), accepting email from dynamic addresses is becoming inherently more dangerous. If smarthosts can't be used from those addresses, then special whitelisting can be done.
Of course, the person implementing email blocks of any type, especially public blacklists, must take some ammount of responsibility in maintaining legitimate email communications as dictated by users.
-Jack
Current thread:
- dnsbl's? - an informal survey Williamson, Todd (May 29)
- Re: dnsbl's? - an informal survey listuser (May 29)
- <Possible follow-ups>
- Re: dnsbl's? - an informal survey Crist J. Clark (May 30)
- Re: dnsbl's? - an informal survey Andy Smith (May 30)
- Re: dnsbl's? - an informal survey Jack Bates (May 30)
- Re: dnsbl's? - an informal survey listuser (May 30)
- Re: dnsbl's? - an informal survey Charles Sprickman (May 30)
- Re: dnsbl's? - an informal survey Mr. James W. Laferriere (May 30)
- Re: dnsbl's? - an informal survey Jack Bates (May 30)
- Re: dnsbl's? - an informal survey Mr. James W. Laferriere (May 30)
- Re: dnsbl's? - an informal survey Jack Bates (May 30)
- Re: dnsbl's? - an informal survey Mr. James W. Laferriere (May 31)
- Re: dnsbl's? - an informal survey jlewis (May 31)
- Re: dnsbl's? - an informal survey Justin Shore (May 31)
- Re: dnsbl's? - an informal survey Andy Smith (May 30)