Cannot fetch emails from mail list anymore

When I tried to unsubscribe from the list on this page (, after entered my email address and clicked the 'unsubscribe' botton, there was no email received in my email box. As a result, it seems I cannot know my status of subscribing now.

Yeah, I never got an email when I tried to unsubscribe either. But when I tried to subscribe again after trying to unsubscribe (using the same email address) I did get an email. Strange, I know... but it worked for me.