Are you looking for a way to automate the process of closing out or changing the resolution state of various alerts? Do you have lots of SQL Job Failure alerts, or Script or Executable failed alerts which are not recurring but you want to avoid manually closing them every day (or hour?) The Scheduled Resolution Update Management Pack provides scheduled rules to auto-close or to change the resolution state based upon a periodic basis. These rules are designed to run daily, hourly, or weekly and to auto-close all alerts which have not been updated in the last hour, day, or all alerts which match the name specified. This management pack also can auto-change the resolution states of alert names which are specified on a daily, hourly or weekly basis.
UPDATE: 220.127.116.11 version added to resolve issues with alert closing for alerts older than an hour or older than a day.