{
{   This request sets the action to be performed by the default unseen_mail
{ condition handler to the option selected by the user for the current
{ environment. Actions which may be specified are postpone condition handling
{ and display a message. If the request changes the action from postpone to
{ display and the unseen_mail condition has been postponed, the unseen_mail
{ condition is caused in the current task.
{
{       CLP$CHANGE_UNSEEN_MAIL_ACTION (ACTION, STATUS)
{
{ ACTION: (input) This parameter specifies the action to be performed by the
{        default unseen_mail condition handler.
{
{ STATUS: (output) This parameter specifies the request status.
{       CONDITIONS:
{             cle$bad_unseen_mail_action
{
