I recently installed WP Updates Notifier. I have yet to receive an email informing me of updates, but several of my plugins have required updates when I login to my site dashboard (examples: Ultimate Security Checker, Mute Screamer, Breadcrumb NavXT). I have it set to check hourly, and to notify me about both theme and plugin updates. I have checked junk folders on my email but not found anything there either. I'm using WP Updates Notifier version 1.2.
Also FYI, through dashboard I clicked on visit plugin site and got page not found:
Thanks in advance for any help!