When first launch of MyPopBarrier a window "About MyPopBarrier" appears. I tried to make a documentation as short as possible because nobody never read. I explain in the 10 first lines of this About Window that email in red are spam and will be remove if you click Purge.

I will add a HepTag on Purge button to say all red emails will be purge. I could also add a display dialog "are you sure you want to purge ?" and then another "are you really sure ?" maybe 3 "are you REALLY REALLY SURE ???" :-))))
I'm kidding ..., and I'm sorry but it was explained.