Items are missing from your mailbox when you use Outlook to connect to Exchange Onlinehttp://blogs.technet.com/b/lystavlen/archive/2012/12/17/items-are-missing-from-your-mailbox-when-you-use-outlook-to-connect-to-exchange-online.aspxIf you are using Microsoft Office Outlook 2007, Microsoft Outlook 2010, or Microsoft Outlook 2013 Preview to connect Microsoft Exchange Online and you notice that some messages are missing from the mailbox, the issue may occur if one or more of the followingen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)