Thank you for this explanation. Unfortunately, we have been trying to get away from "middlemen" in our email process, which is why wp_mail was a very attractive option for me. Keeping the process "in-house" just seems to make sense. I prefer a plug-in vs. using an outside service when it comes to SMTP. Is there any possible benefit to using an outside service like SendGrid or ElasticEmail vs. internal WP email functionality?
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