Noted on today's MacInTouch page: Using Apple's Mac OS X Mail application as an example, a new Apple Knowledge Base article <http://docs.info.apple.com/article.html?artnum=107401> discusses "How HTML Email Messages Relate to Spam": This is often done by embedding your email address in the HTML links (particularly for graphics). When your mail application connects to the Internet to load graphics from the spammer's Web site, the spammer can log your address as "known good." Here is an example of how your email address may be embedded in a link: <http://example.com/bizarre-x-html/yourname=apple.com/spamsite.html> In this example, a spammer working for example.com is attempting to verify the address "yourname at apple.com". This is one common example of the syntax used, and many other variations are possible.