Rated 3 out of 5 stars

by frankzen on July 25, 2016 ·

I often have to hit the empty 'em button 2 or 3 times before it will do what it says. Other than that, it seems to work

by Jens-Uwe Groß (Developer) on July 26, 2016 ·

Please note that folders related to IMAP accounts are processed asynchronously. This might explain why you perceive the button as not responding.