Nothing I Do Stops Crazy Spam Emails in My Inbox!

In the last month I have started getting crazy (sometimes obscene titled as well) spam emails.  For months this didn't happen other than one or two every few days that I could quickly delete.  I have done all the things Comcast recommends for stopping spam emails yet nothing has helped.  Even deleting them as "Spam" doesn't stop them from reappearing.  Is there anything I can do to stop these?  (I am no longer a Comcast customer but use this email as my husband has health problems and we don't want to miss changing an email address for his doctors. We were customers for over twenty-five years until the service got terrible and the price kept going up.)  Thank you for any help if there is any!