To delete a Sun ONE account,
perform the following steps:
Choose Tools -> Settings to display the Evolution Settings dialog.
Click on the Sun ONE accounts button
in the left pane. Evolution displays a table of
accounts that you have created, in the right pane.
Select the SUN ONE account that
you want to delete.
Click Remove to display a confirmation alert.
Click Delete to delete the selected account.
Click OK to close the Information alert that tells you that you must restart Evolution for the change to take effect.
Restart Evolution.