It's not like legitimat-ish email marketing will suddenly switch to scammers or illegal spam, they would actually get in trouble for violations. Companies that

It's not like legitimat-ish email marketing will suddenly switch to scammers or illegal spam, they would actually get in trouble for violations. Companies that don't rely on scams aren't desperate enough to risk getting fined for such a weak lead (I'd hope). Not that I'll ever configure my email client to automatically download images, as far as I'm concerned downloaded images is just making your email address more valuable to the spammer by confirming you got it.