Which is better? Email marketing? Or messenger marketing?

<p><strong>Need help? Please contact Sheila Koester at </strong><a href="http://sdkoester@verizon.com/" rel="noopener noreferrer" target="_blank"><strong>sdkoester@verizon.com</strong></a><strong> or at </strong><a href="http://koesterkeywords@gmail.com./" rel="noopener noreferrer" target="_blank"><strong>koesterkeywords@gmail.com.</strong></a><strong> Please visit </strong><a href="http://koesterkeywords.com/" rel="noopener noreferrer" target="_blank"><strong>koesterkeywords.com</strong></a><strong> for more information.</strong></p>