"embedded images in email do not evade image blocking. In the case of 'the Outlooks'1 above, not only were the images blocked, but they largely remained blocked, even when the other images in a newsletter were downloaded. The majority of email clients which reliably display embedded images (being Apple and iOS Mail) don't block images by default, making this technique redundant."
Fifty-five percent of consumers stated that they turn on the images in the emails that they receive, which rivals the 57 percent of consumers that state they check their primary personal email account on their mobile devices. -- Far fewer consumers add sender addresses to their address book, which in most email clients will enable image rendering by default. Sixteen percent of consumers stated that they added an email marketer's email address to their address book.
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