TYPO3 has build in method to protect email links created with typolink API. This method protects only a href=”mailto:some@example.com” but does not protect the text inside link. So if the text itself is an email then protection is not working well. One solution is to always use <a>email</a> and not real email as link text. The second solution is to prepare tricky “email” html that the spider will be not able to parse correctly.