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The WordPress Email Authority

FREE expert advice on setup, maintenance, and troubleshooting

Your WordPress email problems solved

Welcome to nanoPost, or, as we’d like to think of ourselves, The WordPress Email Authority. Our mission is to help you solve your WordPress email problems, whether it’s setting up, maintaining, or troubleshooting. Our expert guides, Q&A, reviews, and news on WordPress SMTP, contact forms, and more are here to provide you make the best choices.

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    Recently Updated

    • GD Mail Queue Review

      Queue-based wp_mail interceptor by Milan Petrovic. Capable architecture and the deepest logging panel in the category. Eighteen months without a release.

    • SMTP Mailing Queue WordPress plugin review

      SMTP Mailing Queue replaced pluggable wp_mail and queued mail to JSON files on disk. Closed by author request on 2024-10-09; no longer on wp.org.

    • Post SMTP review

      Post SMTP is the WordPress mailer plugin that pushes failed-send alerts to a mobile app. Logging, OAuth, and a fallback SMTP connection ship in the free version.

    • Mailchimp Transactional Email (formerly Mandrill) as a WordPress SMTP Server

      Mailchimp Transactional Email runs on Mandrill’s infrastructure but requires a $20/month Mailchimp Standard plan before any 25,000-email block can be purchased.

    • Mailgun for WordPress Review

      Mailgun’s official WordPress plugin routes wp_mail() through Mailgun’s API over HTTPS, bypassing host SMTP port blocks. Free plugin, no permanent free tier.

    • Mail Queue WordPress plugin review

      Mail Queue by WDM queues WordPress email via the pre_wp_mail hook, leaving SMTP plugins untouched. Actively maintained: v1.5.1, tested up to WordPress 7.0.

    • Gmail SMTP by naa986 Review

      Free WordPress mailer for Gmail using XOAuth2 over SMTP. Works in 2026 — but requires a specific Cloud Console step to avoid the 7-day token expiry trap.

    • WPForms Lite review

      WPForms Lite is a free drag-and-drop form builder for WordPress. No local entry storage, no conditional logic, and most integrations require a paid plan from $49.50/year.

    • SMTP Mailer review

      SMTP Mailer connects WordPress to any SMTP server using credentials you supply. 70,000+ active installs, free core, SMTP session log on test sends.

    • Transactional email and WordPress

      Transactional email goes to one recipient following one action they initiated. Here is what WordPress core and WooCommerce send, and how the legal carve-out works.

    • How to set up Postman API platform as an OAuth client

      Configuring Postman as an OAuth 2.0 client against Microsoft Graph or any IdP: redirect URI, PKCE, and token reuse details that trip up most setups.

    • YaySMTP (by Yay Commerce) review

      YaySMTP review — mailer plugin by Yay Commerce; free version includes Amazon SES, Outlook OAuth, and email tracking; Pro tier adds priority support only.