The Risks of HTML-Formatted E-mails

You can love ‘em or hate ‘em, but you can’t stop people sending them. So what are the risks of HTML e-mail? With HTML-formatted e-mails anything goes, just like on the Web. Data can be invisible (using small or transparent text), obfuscated (using special tags), dynamic (formed inline during rendering), and scriptable (using client-side scripts such as JavaScript and VBScript).

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