Perform the following steps:
Choose Tools -> Settings to display the Settings dialog.
Click on Sun Java System Accounts in
the left pane.
Email and Calendar displays a table
of accounts that you have created, in the right pane.
Select the account that you want to edit.
Click Edit to display an Options for account name dialog. For information about the contents of the Options for account name dialog, see To Add a Java System Calendar Server Account.
Use the Options for account name
dialog to modify the details of the
Click OK to save your changes and close the Options for account name dialog.
Click OK to close the Information alert that tells you that you must restart
Email and Calendar.