Log in as an administrator with permission to change the configuration.
Stop Calendar Server services by issuing the stop-cal command.
Change to the /etc/opt/SUNWics5/cal/config directory.
Save your old ics.conf file by copying and renaming it.
Edit the ics.conf parameter that follows to specify the administrator’s email address:
alarm.msgalarmnoticercpt="admin@email_address"
Save the file as ics.conf.
Restart Calendar Server.
cal-svr-base/SUNWics5/cal/sbin/start-cal