Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Flat out doesn't work

It doesn't support Secure Sockets Layer, which is required for my ISP. They don't tell you that before buying. I wasted hours, working this out for myself, contacting tech support, and after I explained to them what the problem was, they found it in their knowledge base. "Based on the information you gave us the problem is that SpamKiller doesn't support SSL. Is there anything I can help you with?" "Yeah, how about a refund?" Nope, that is a different department. So, non-functional product (with my ISP, at least.) And they weren't very appologetic, or quick with the refund. And the address that the tech gave me for sending feedback doesn't function either.