Rated 4 out of 5 stars

by margaldi on Feb. 10, 2017 ·

Have used this add-on for long time. Previously on POP3 setup not many issues found. Now I am mostly on IMAP setup, with many duplicates.
I have found the following limitations. If you run the search on a multiple folders which results in many duplicates (say more than 1000), then the add-on "crashes". If finds the duplicates, but doesn't actually delete them. Only if the duplicates are around max 500 then the add-on runs without crashing. I think its related to the speed that the IMAP can handle the "actions" coming from Thunderbird.
With current add-on, its best to limit the application to only 1 folder at a time.
Also if duplicates to be deleted are more than 400-500 messages, better to split the folder in more subfolders and ran to each subfolder.
I would like if the add-on could be chosen to ran on "Selected messages", similarly to what is possible with the Filters. This way, we avoid needing to split folders in subfolders with less duplicates.
Other solution, could be to setup the add-on automatically to run on not more that 400-500 messages per time.