I get lots of e-mails and most of them are not junk anymore (good anti-spam filters). However, many of them are duplicates and I end up spending a large amount of time deleting the duplicates since they affect the disk space in the long run. Although I've found some commercial Duplicate email Removal tools, they only work with MS Outlook e-mail clients. I usually use Incredible. I don't know how easy or hard it would be to create a utility to scan and delete duplicate e-mails based on variables such as date, time, from, subject, and to. If all variables are equal, delete -1, else, prompt for action.
I hope that this community's coder wizards come up with this utility soon. Thank you.