When checking a claim notability, does the fact the claim was perpetuating via chain mail (or several chain mails) make the claim notable? (Example question: Is "self-CPR" effective?)
A chain mail should be a fine notable claim... That said the question here really shows no effort. Some supporting evidence or ambiguity would make this a better question. SE is not your typical I have a question please answer it for me site. You are expected to try to solve the problem yourself and share what you have learned in your question. Or at the very least find multiple sources of the claim. There is no evidence of that here.