Sorting and filtering messages
To sort messages, do the following:
Click the column header of your choice. For example, to sort messages in your Inbox according to the sender, click the From column header.
Click the arrow on the column header and select the sort criterion from the popup. For example, you can sort and group messages according to sender, message title, or message type.
To remove the criteria from use, click the arrow on the column header and select Clear filters.