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

    • 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.

    • FluentSMTP review

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

    • Best WordPress SMTP plugins: WP Mail SMTP vs FluentSMTP vs Post SMTP

      WP Mail SMTP, FluentSMTP, and Post SMTP compared by use case. Free vs paid feature splits, where each plugin is the wrong choice, and the also-rans.

    • Best Amazon SES plugin for WordPress: WP Offload SES vs FluentSMTP vs WP Mail SMTP Pro

      The six WordPress mailer plugins with native Amazon SES support, compared by fit. Which is free, which needs Pro, and where each one is the right choice.

    • 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.

    • Mailjet as a WordPress SMTP Server

      Mailjet’s free tier sends 6,000 emails/month from WordPress. Marketing and transactional email run on one account, with EU data centers. Fits sites already using Mailjet campaigns or wanting a single EU provider for both.

    • SimpleLogin Email Aliasing Service

      SimpleLogin is a privacy-first email aliasing service owned by Proton. Unlimited aliases and custom domains on the $4/month Premium tier. Fully open-source and self-hostable.

    • Mailgun as a WordPress SMTP Server

      Mailgun is mature developer-focused email infrastructure. HTTP API and SMTP relay, permanent free tier of 100 emails/day, inbound routing, email validation, and granular event webhooks. Fits high-volume, developer-led projects and agencies running per-domain sending reputation.

    • Migadu Email Hosting and Forwarding

      Migadu is a flat-rate Swiss email host: unlimited addresses across unlimited custom domains at every paid tier. Priced for operators past per-seat mailboxes.

    • addy.io Email Aliasing Service

      addy.io (formerly AnonAddy) is an independent, open-source email aliasing service. Unlimited standard aliases on custom domains from $3/month on the Pro tier.

    • Free SMTP Servers for WordPress

      Thirteen free SMTP options for WordPress, ranked by whether the $0 tier is actually permanent. Permanent free plans, trials, and testing sandboxes – separated.

    • Resend as a WordPress SMTP Server

      Resend gives a WordPress site 3,000 emails a month free, a dedicated third-party plugin, native WP Mail SMTP support, and per-domain regions across four continents. For most sites, that is the answer.