Rated 1 out of 5 stars

I would really like to use this tool, but unfortunately it does not work in my case. I have Thunderbird 45.8.0 on Mac OS X, and approximately 570,000 emails stored. When I try to identify/remove duplicates with this program, I get a message saying that there are more than 200,000 messages, so it is switching to a memory-saving "slow mode". After that, the CPU is pinned and nothing happens. I have waited overnight, but the CPU remains pinned and no duplicates are identified. I tried to find contact information to get in touch with the author, but could not find it.