Gary Robinson's Spam Rants
A Weblog containing links and occasional rants on spam.

 

Gary Robinson is CEO of Transpose, LLC, and a Research Director at ActiveState. Main blog here.

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  Monday, December 9, 2002


In the spam filtering community there has been a discussion lately on full training vs. training-on-errors. That is, do you train a spam filtering system on every spam that arrives, or only on the ones it classifies erroneously? A test by Greg Louis "appears to confirm the hypothesis that switching to training-on-error after a period of full training can lead to better results than are obtained by continuing to train fully."
3:15:40 PM    comment

Lately, I've been thinking about the following idea: if a particular trademark (for instance, "ImNotSpam!") came to be known as associated with legitimate email, then legitimate emailers could include it in their messages, in the subject lines and/or bodies. The results would be:

a) spam filters would train themselves to consider such emails to be legit, so it would get through;

b) when spammers figured it out and starting using it in their emails in order to evade the filters, they would be guilty of trademark infringement. This is cool, because it would put spammers in the position of violating the law: something they are not now doing in most locations. They would become vulnerable to civil lawsuits for trademark infringement. As spammers started trying to use the mark spam filters would no longer consider the trademark to be 100% associated with legitimate email, but if the lawsuits succeeded, they would still be associated with it most of the time, so legitimate emails containing the mark would still go through.

But I found out today that this idea is now being done by a company called Habeas, and they seem to be doing a superb job of it. The service was introduced 13 weeks ago. It costs nothing for individuals to use their trademark in outgoing emails (and they guarantee that will remain true in the future), and they say they have deals with filters like SpamAssissin to let emails with the mark go through, so they don't even need to be trained. More impressively, they have deals with AOL and Yahoo. In addition they are using a haiku form to invoke copyright law as well as trademark law. It looks like they have the legal issues very well thought out, although I'm sure some of their assumptions are untested in court. Check them out. Here's their FAQ.
1:41:16 PM    comment


Jon Udell sends an email and gets asked to register with ChoiceMail.
11:50:28 AM    comment

"AMERICAN WORKERS ARE largely spared from unwanted commercial e-mail, according to a new study published Sunday that contradicts the perception that spam is flooding inboxes.

Of the 1,003 American at-work e-mail users surveyed by the Pew Internet & American Life Project, 52 percent reported no spam in their work inbox and another 19 percent said less than 10 percent of the incoming e-mail at work is spam. By contrast, only 21 percent of respondents reported spam-free personal inboxes." [InfoWorld]
11:01:24 AM    comment



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