First, please check your notification settings to make sure that you have set your preferences correctly. Second, please check your account’s spam filter or spam folder, as we have received several reports of group activity stream posts being caught by spam filters. Commons emails are sent from the address “noreply@commons.gc.cuny.edu,” so you may need to add that address to your contacts or to your spam filter’s whitelist. If you are still having problems, please contact us.