SMTP vs Mailchimp: Deliverability Showdown
WordPress Mail SMTP secures and routes your site’s transactional mail, while Mailchimp (and its Transactional/Mandrill service) handles marketing reputation and scalable sending. This guide compares both, shows how to combine them for best deliverability, and gives a practical checklist—authenticate domains, separate traffic, enable logging, and monitor reputation to keep emails in the inbox.