Fred, this is an issue that goes back years. Not just to December of last year. By the time you reported this they had already moved on to SmarterMail 16 and are look forward at 17. Good luck getting any traction there. Your solution is likely the best you are going to get here, but possibly a little overkill. I don't think you need to look for 'Failed', and I don't they they build up so fast you need to run hourly. If the file is still there after a few days, kill it. If you want to really play it safe, delete anything older than the time you have set for your spool retries. Mine is just over 4.5 days, so if it is 5 days old, it is not getting any more delivery attempts anyhow. That is just my opinion though.