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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

    • 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.

    • MailHawk as a WordPress SMTP Server

      MailHawk is a WordPress-native sending service from the Groundhogg team. $1/mo Basic tier for 1,000 emails, no external dashboard, plugin-only interface. Fits Groundhogg-based operations and WordPress operators who want sending managed entirely inside the admin.

    • 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.

    • MailPoet as a WordPress SMTP Server

      MailPoet is a WordPress newsletter platform (500K+ installs, by Automattic) with its own sending service. Built for newsletters and marketing automation from inside WordPress; not designed as a standalone transactional SMTP relay.

    • SendLayer as a WordPress SMTP Server

      SendLayer is a transactional relay from Awesome Motive (WPBeginner / WP Mail SMTP), with turnkey Quick Connect setup through Easy WP SMTP. Annual plans from $5/mo.

    • 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.

    • WP Mail SMTP Review

      The most-installed WordPress mailer plugin (4M+ sites). Broad mailer support and a setup wizard that works. Email logging requires the Pro plan ($99/year on renewal).

    • 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.

    • WordPress hosts where wp_mail works without a plugin

      Seven WordPress hosts route wp_mail through a signed relay by default. Password resets land without a mailer plugin. Which to pick, when, and why.

    • 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.

    • Debugging WordPress SMTP OAuth setups with Postman

      Validate a Microsoft 365 or Google Workspace OAuth registration in Postman before wiring the client ID and secret into WP Mail SMTP, FluentSMTP, or Post SMTP.

    • Reading SMTP bounce codes in WordPress mailer logs

      Decoding the SMTP bounce codes WP Mail SMTP, FluentSMTP, and Post SMTP log – numeric code, enhanced status code, and Gmail/M365 variations.