|If you read the text it is usually obvious it is a scam. Mostly it is suggesting something that is too good to be true and from someone you have never heard of.|
If in doubt don't respond in any way (don't even use the "opt out", if any).
Tracing the source won't usually get you very far because they disguise themselves. You can contact your server but that doesn't usually help much either.
Always pop back and let us know the outcome - thanks