Most mailboxes have a maximum size limit. When your mailbox reaches its limit, you won't be able to send new mail until you delete some existing content in your mailbox. You may also be unable to receive new mail, depending on the limits that have been set on your mailbox.
|This information applies to the standard version of Outlook Web App. The feature that's described isn't available in the Outlook Web App Light.|
In the Navigation Pane, click Mail.
Point to your name at the top of the folder list.
A window appears that shows the current size of your mailbox and, if your system administrator has set limits, shows your mailbox limits, too.
What if I want to know more?