Barely functional but great idea Rated 2 out of 5 stars
Unfortunately submitting an entire folder is not a good idea. Services like SpamCop, for example, only accept emails which are a maximum of two days old. I've not found an option to use this addon in order to submit emails one by one, should such an option be added it will receive a five star review. Until then this app is not usable.This review is for a previous version of the add-on (1.14.0).
thanks Aleksandr for your valuable feedback, however I do not accept bug reports/feature requests as reviews - and nonetheless I don't take any action in exchange of five stars reviews