[header] How to conquer inbox clutter in outlook [title] Use the clean up command. [step] In outlook 2010, the clean up command is an easy way to clear out a large number of email messages quickly. Say you have several thousand unread emails in a folder. 
The clean up command can reduce the count by 35 percent in about four seconds. [substeps] When you click " clean up " on the home tab, outlook 2010 evaluates the contents of each message in a conversation, or in all conversations in a folder.