Yahoo mail replaced words that could be used by hackers to run email viruses on the HTML-enabled web-based email system that they offer for free. They changed words such as 'eval' to 'review'. But that's not the half of it. The bonus piece is that they didn't bother to do searches on full words..So, if you sent a message asking for something to be evaluated - it would be delivered with the word 'reviewuated' - YUCH! I'm sure there were other words too - searches on Google for 'reviewuated' and 'reviewuate' showed some interesting results - including the editing of some resume's of Educators...exactly the place you wouldn't want such gaffes.
Oh, and no more peeps out of North American Telephone Network...congratulations on getting it right finally!