Re: request a return receipt

There is a hack to do this, the infamous email bug. Warning: I've never used this, and I'm not recommending it. It's used by many spammers to check whether some email addresses are active or not, I'm not sure whether it's still being used: if your receipient allows html in their email, you can embed a bug in the email (basically an <img/> tag to point to a logging script on your http server), whenever the user opens an email, your logging script will get a hit.

Comment on Re: request a return receipt

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Re^2: request a return receipt by Mutant (Priest) on Apr 14, 2005 at 09:37 UTC
Nowadays, 99% of email clients (including Outlook, and the big web mail clients, hotmail, yahoo, etc) won't load images by default. The user has to click a button to load the images. So images are pretty much useless for email tracking. There's pretty much no way to track who reads your email these days. (Which isn't really a bad thing :)	[reply]