What I have to say? It works for me... you surely know much more than me about your app and Sailfish system, there's no denying that. But how do you explain that I have the latest Sailfish update, and still flawlessly get message notifications even when my phone is surely in its deep suspend state (since I've not been touching it for hours)?

I really don't want to sound aggressive here, I just don't understand how what I see and what you say can go together.