How to stop receiving text messages from email address

Please help… I receive inappropriate text messages non stop from email addresses. I literally can not take it anymore! I have tried blocking each time, however the text come from different emails each time so literally this has become my everyday job! I do not want to receive text from email addresses ever! How can I make this stop? Attached is a screenshot of what my text folder looks like constantly these text come as group messages but the original sender is a hotmail account! Please help me to make this stop