I've seen this happen quite a few times, and it is always because the Outlook profile has been set to move emails to Personal Folders and NOT the mailbox (as drothbart states).
I would definately check
Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.
Are you unable to connect or configure Hotmail email account in Microsoft Outlook 2010, 2007? Or Outlook.com emails are not downloading to Outlook? Lets’ see the problem and resolve Outlook Connector error syncing folder hierarchy (0x8004102A).
Many of my clients call in with monstrous Gmail overloading issues with Outlook. A quick tip is to turn off the All Mail and Important folders from synching. Here is a quick video I made to show you how to turn off these and other folders in Gmail s…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA).
For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651
If you want to manage em…