Patricia, if your newsletter is like mine, you can still read it. Make Mail show the source code. In the Swedish version it's the third menu "Contents something" and then go to "Show...". It should say "Source code" or something like that. Choose it. Now you should see the source code in all its glory. Go Cmd+A (select all) , Cmd+C (copy). Open a blank document in BBEdit Lite (should work with Text Edit too), paste the lot and save it as something.htm. Now you can open this htm-file with a web browser and read the contents.