Puntuado con 1 de 5 estrellas

I may sound crazy with so many positive reviews, but I believe this add-on does not work and never worked properly (though I used it successfully to some extent) After failure to configure it to reasonable settings that will find duplicates (stripping options to Author, # of lines and subject field), I finally left only Author and subject. Well, it returned tons of results from different authors. This app was never tested even to provide bare minimum of functionality (i.e. selecting single option should yet return correct result) I don't understand why are you guys so excited about deleting (keeping first copy) of legitimate, non-duplicate emails? Unfortunately, I cannot provide screenshots here. Otherwise, it would be total embarrassment to this add-on.

Esta valoración es de una versión anterior del complemento (0.3.3). 

The selected options are the ones using which messages are compared. If you unchecked the 'Author' criterion, it means messages are only compared using other fields and the author may differ. Take the complement set of criteria and this will probably do what you want.