<https://www.mailingmanager.co.uk/blog/do-you-need-to-show-some-tough-love#webpage>
<http://schema.org/description>
"It might sound counterproductive to actively ask your contacts if they still want to receive emails from you. but do it. It is for the best."
<https://www.mailingmanager.co.uk/blog/do-you-need-to-show-some-tough-love>