Problems with Asian Spam

[John G Walker]

On Wed, 22 Nov 2006 13:28:36 -0500 Tom Anderson
<tanderso at oac-design.com> wrote:

> dhottinger at harrisonburg.k12.va.us wrote:
> > Thanks for all the encouragement.  I think we get hammered extra
> > hard because our email addresses are easy to harvest (all of our
> > staffs email addresses are listed on a webpage, "so parents can
> > contact staff easily"). 
> 
> You can use JavaScript to obfuscate the addresses you post to your 
> websites.  For instance, instead of using:
> 
> <a href="mailto:tanderso at oac-design.com">my email</a>
> 
> You can achieve the same link, but completely boggle the harvesting 
> bots, by doing this:
> 
> <script>email("tanderso","oac-design.com","my email");</script>
> 
> You'll just have to define the "email" function in the head of your
> page:
> 
> 	<script language="JavaScript">
> 	function email(address,domain,description)
> 	{
> 	        var at = String.fromCharCode(64);
> 	        if (!description) { description = address+at+domain; }
>          	document.write("<a 
> href='mailto:"+address+at+domain+"'>"+description+"</a>");
> 	}
> 	</script>
> 
> Few robots have the sophistication to make heads or tails out of
> that, and thus you'll stay off quite a few lists, both reducing your
> direct spam and also reducing your bounce spam.  You can verify the
> effect by going to an email obfuscation tester 
> (http://willmaster.com/possibilities/demo/RetrieveEmails.cgi) and 
> plugging in your URL.
> 
> Tom
> 
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This sort of thing is useful, and I have used it myself for several
years. But I don't think it's true any more that it confuses robots.
They've got very sophisticated recently,

-- 
 All the best,
 John