nanoPost

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

    • 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.

    • Zoho ZeptoMail plugin review

      Zoho’s official WordPress plugin for Zeptomail (formerly TransMail). API-based, multi-agent routing, failed-email log, retry, test send. No Pro tier.

    • 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.

    • SMTP2GO plugin review

      SMTP2GO’s official WordPress plugin routes wp_mail() through the SMTP2GO API. Single-provider, no logging, no fallback. The right pick when SMTP2GO is decided.

    • 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.

    • FluentSMTP review

      FluentSMTP is the open-source WordPress mailer plugin from WPManageNinja. Logging, multiple connections, fallback, and OAuth, all in the free version.

    • Zoho Mail as a WordPress SMTP Server

      Zoho Mail is a mailbox service usable as WordPress SMTP relay via OAuth plugin or generic SMTP. Free for 5 users. Adequate for low-volume sites already on Zoho.

    • Bird (formerly MessageBird, formerly SparkPost) as a WordPress SMTP server

      SparkPost was acquired by MessageBird (now Bird) in 2022. The official WordPress plugin was closed in March 2025. No longer available as a self-service product.

    • SMTP.com as a WordPress SMTP Server

      SMTP.com is a high-volume email relay with 22+ years of operation. Entry at $25/mo for 50K emails. Overpowered for typical WordPress sites; relevant for large WooCommerce or membership platforms.

    • Resend as a WordPress SMTP Server

      Resend is the React Email team’s developer-first sending service: generous free tier, clean API. For WordPress operators, does the developer pitch translate?

    • Postmark as a WordPress SMTP Server

      Postmark is a transactional-first email relay with deliverability as its core product. Basic plan starts at $15/month for 10,000 emails. The right default for WordPress sites that need email to arrive.

    • Netcore Email API (formerly Pepipost) as a WordPress SMTP Server

      Netcore Email API (formerly Pepipost) is a developer-focused relay starting at $25/mo for 150K emails. Free tier allows 100/day. Enterprise-oriented; most WordPress sites should use simpler alternatives.