nanog mailing list archives
Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at
From: Brad Knowles <brad.knowles () skynet be>
Date: Tue, 27 Aug 2002 23:42:28 +0200
At 7:43 AM +0000 2002/08/27, Paul Vixie wrote:
i doubt they will comment in detail here, since the actual numbers are likely to be some kind of internal secret. i know i get far less spam from AOL than i used to, and i've assumed that this is because they decided to address the costs at the front end (in their service model) rather than the back end (in endless cleanup.)
They have implemented a lot of internal controls for users of the AOL client. For dial-up users trying to directly transmit mail, they have to pass through the transparent SMTP proxy which the AOL personnel set up and explicitly requested that it be added to the MAPS RBL.
So, one way they have to deal with the AOL internal controls, and the other way they are already blacklisted.
no solution which does not progressively leverage the combined small efforts of millions of spam victims will ever be measurably effective other than in some small locality and/or for some brief instant. see the DCC for an example (http://dcc.rhyolite.com/) of how to build and apply that leverage. (i'm not giving the reference to vipul's razor because i said "millions.")
Indeed, that is a cool idea. I definitely want to look into that a lot more closely. Perhaps we can combine this with deep blacklist checking (beyond just the first hop), tagging, and Bayesian content filtering. Perhaps then we will have a temporary pass at a semi-decent anti-spam filter.
-- Brad Knowles, <brad.knowles () skynet be> "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." -Benjamin Franklin, Historical Review of Pennsylvania. GCS/IT d+(-) s:+(++)>: a C++(+++)$ UMBSHI++++$ P+>++ L+ !E W+++(--) N+ !w--- O- M++ V PS++(+++) PE- Y+(++) PGP>+++ t+(+++) 5++(+++) X++(+++) R+(+++) tv+(+++) b+(++++) DI+(++++) D+(++) G+(++++) e++>++++ h--- r---(+++)* z(+++)
Current thread:
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at, (continued)
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at Paul Vixie (Aug 26)
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at Patrick (Aug 26)
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at Paul Vixie (Aug 26)
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at Patrick (Aug 26)
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at Scott A Crosby (Aug 29)
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at Paul Vixie (Aug 29)
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at David Van Duzer (Aug 26)
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at Paul Vixie (Aug 27)
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at Paul Vixie (Aug 27)
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at Barry Shein (Aug 27)
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at Brad Knowles (Aug 27)
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at Paul Vixie (Aug 27)
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at Brad Knowles (Aug 27)
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at smtpng.org) Jim Hickstein (Aug 27)
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at smtpng.org) Brad Knowles (Aug 28)
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at smtpng.org) Brad Knowles (Aug 26)
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at smtpng.org) Randy Bush (Aug 26)
- RE: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at smtpng.org) Jeroen Massar (Aug 26)
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at smtpng.org) John Kristoff (Aug 26)
- RE: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at smtpng.org) Jeroen Massar (Aug 26)
- Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at smtpng.org) John Kristoff (Aug 26)