Gmail
From ATTWiki
Please be aware that Gmail has been losing e-mail databases lately. When this happens, they offer no hope of recovery. Article: http://www.computerworld.com/action/article.do?command=printArticleBasic&articleId=9047178
If you have mail that is only stored on Gmail servers that is very important to you, then I recommend that you consider begin using an e-mail client software program on your system (like Thunderbird) to download all your e-mails to your system.
--Mcone 10:03, 16 November 2007 (EST)