15 May
2003
15 May
'03
1:21 a.m.
On Thu, May 15, 2003 at 03:50:43AM +0200, Thomas Shaddack wrote:
You can use web bugs embedded in HTML mail, fetching an object from a tracking server. This doesn't work with some mailers, however Outlooks to version 5.5 are vulnerable for sure and numerous other ones are as well. This approach is already widely used for checking the validity of email addresses.
Yep, and I've never understood why someone would do that. I read email using mutt/lynx and Eudora (with "Automatically download HTML graphics" turned off). Heck, sometimes I'll use /bin/mail or cat. I'd never register as having read the email. Guess I'm not the target audience; the Outlook crowd is. -Declan