Noptin

Noptin is a lightweight WordPress newsletter plugin built to stay efficient even on shared hosting. It sends email notifications automatically when you publish new posts, manages subscriber lists, and supports automated email sequences without requiring external services. The plugin works entirely within WordPress and doesn't mandate a third-party platform account.

Noptin works well for bloggers and small publishers who want email automation built into their site without complexity or monthly platform fees. It's simpler than tools like MailChimp's WordPress plugin but more powerful than basic subscription forms, and it requires almost no configuration to start sending notifications.