Hi Peter,
I am really sorry for the delay of this reply.
I've checked your email activity and the email notification did get generated from your backend email activity area. However all of those email are not being publish as you can see from my screenshot here,
http://screencast.com/t/xLjwqj19miI . This is because you haven't set a cronjob for easysocial on your server. You can refer to our documentation here on how to set up cronjob for your site,
http://stackideas.com/docs/easysocial/administrators/cronjobs .
In the meantime, you can enable the following options from your backend > easysocial > settings > general,
http://screencast.com/t/b2kEqGj2ra so that all pending emails will be processed for every page load of your site.