The default settings shows you 50 emails on each page in every folder to prevent long
loading screens at your mailbox. You can change the amount of emails shown. You can view up to 300 emails on
each page.
Info:
The more emails you view per page, the longer the page
takes to load. For technical reasons, you can only view up to 100 emails per
page in Internet Explorer.
Move your mouse over the appropriate folder and click the wrench
icon.