I've registered on Warm Showers some years ago and also received accommodation requests, but unfortunately never got a notification about them. I would have loved to host these people, but wasn't aware of it. My e-mail has been setup correctly (I think), and I also don't find any messages in my spam folder.
What might go wrong here? I now "solved" this by putting my e-mail right on my profile page. But this is most likely not how it's meant to work, right?
Best from Sweden, Tom