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How to Check Your Outlook Folders' Sizes

By , About.com Guide

Outlook Slow and Unwieldy?

Has handling email in Outlook become slow and unwieldy, or is your hard disk shrinking and you suspect the ten thousand emails with their twenty thousand attachments might be involved?

But which folder is to be blamed, where do the big emails hide? Fortunately, Outlook comes with a small tool that lets you find out exactly how much space each folder occupies.

Check Your Outlook Folders' Sizes

To see the size of your Outlook folders:

  • Select Tools | Mailbox Cleanup... from the menu.
  • Click View Mailbox Size....
  • Click Close (two times) to close the mailbox size view again.

It's a pity the Folder Size view does not allow you to sort the folder list by size.

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