Yahoo's Buggy IMAP Server Affects iPhone Too->
He ran a similar test with the help of a friend’s iPhone and got a similar result whereby the Yahoo servers returned more data than requested. So much for it being a WP7 problem only.
WMPoweruser: http://wmpoweruser.com/yahoo-mails-data-leak-also-affects-the-iphone/
WithinWindows: http://www.withinwindows.com/2011/02/02/yahoo-your-buggy-imap-server-affects-iphone-too-thanks-for-playing-though/"
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