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CloseReview for Remove Duplicate Messages by Salvatore Randazzo
Rated 5 out of 5 stars
It works properly and I use it successfully since 1 day. My colleagues started using it too.
Today I had a problem. The addon correcly identified many duplicated messages, tagged them for delete, but the the delete process didn't work. I had to close Thunderbird and when I opened it again, the add-on worked smoothly.
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