I have deleted lots of emails but Outlook still claims I am using lots of space. What is wrong?
When you delete emails from Outlook, it doesn’t actually delete them from its data file, Outlook.pst. You can do this by right-clicking on University Folders, selecting ‘Properties for “University Folders”…’ from the menu and then clicking the ‘Advanced’ button followed by ‘Compact Now’. CAUTION: This operation can take several hours to complete for large mailboxes.