If you are receiving errors about being close to your quota for your Exchange e-mail account, follow the instructions given to attempt to decrease the amount of e-mail saved to your online account in an attempt to avoid reaching your quota.
This tutorial applies to the following operating system(s):
Open Microsoft Outlook. Click the Tools menu at the top of the the window and then click the Mailbox Cleanup... menu option.
The Server Data tab contains information about the size of folders on the Exchange server. From here, you can see the size of each folder to see how close you are to your quota limit. Click the Close button when finished.