Well, to update on this. I did make a few small tweaks to the script, nothing major. What I found out is that I needed to add more info to the exclusion file. Basically, in the past, I could just add the email of the person I wanted to exclude. For whatever reason, I now have to add the email and name associated with the email. Such a simple thing, but it didn't occur to me, since I never had to do that before. It was just whim that I decided to try that. I can only attribute this, most likely, to a perl upgrade. I suppose it could have been os related, but I suppose it doesn't matter. Thank you for the replies. Now I can work at understanding how perl operates, better.