Now that you are accomplished configuring your product configurations, go in your domain registrar's website to update your DNS documents. Edit your SPF report. During the entry, involve the IP tackle that you pointed out in action 1. The completed string seems to be similar to the next illustration: https://postal-smtp-setup66666.alltdesign.com/the-single-best-strategy-to-use-for-letsencrypt-certificate-install-46628209