I‘ve noticed a 
flood of phishing attempts and there are actually some good ones in the set, noticably the ones that purport to come from e-bay. GMail provides good protection against accidently clicking any of the links in those mails. Most of time, there’s no need to open those mails: I don’t do e-bay, amazon nor do I have a paypal account. Sorry fooks. However, having worked on an e-mailer, here’s a thought to think of:
If everybody insisted on not receiving HTML/MIMED e-mails, phishing would not even make a chance. I mean, what’s the point of ‘receiving fancy e-mails’ anyways: if I want a mortgage, you think I would send a request by e-mail?
Anyways, for ages it has been my policy to only accept properly MIME-encoded ASCII messages (the text/plain type). I don’t need that stinking HTML stuff. Oh. Your attachments suck too.