I continually get obscene emails in my junk mail. They are titled the same way each time. Every time they show up I "block" them using the sweeping process, which supposedly blocks them from returning, yet return they do.  My 12 year old shares  my email address, so I am in a constant state of  vigil to be sure that she isn't exposed to the offensive title of these emails. How do I permanently rid my account of  these disgusting emails once and for all?