Free WordPress email tools: SPF, DKIM, DMARC, and more.

Try the tools

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.

Have a WordPress email problem right now? Ask us about it.

We’ll attempt to publish a solution ASAP for free. Challenge us!




    Our Guides

    See all Guides

    Recent Q&A’s

    See all Q&A’s

    Recently Updated

    • 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.

    • Contact Form 7 review

      Contact Form 7 uses wp_mail(), so any mailer plugin routes its submissions automatically. Free, no Pro tier, add-ons fill the rest.

    • 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.

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

      SparkPost is now Bird’s email product. Free is 1,000 emails a month with a 50-a-day cap; paid plans are monthly deposits from $15, charged per 1,000 sent. The official WordPress plugin is closed, but WP Mail SMTP and FluentSMTP connect over the API.

    • Free and unauthenticated SMTP servers in 2026

      What free SMTP servers still exist in 2026, why unauthenticated SMTP no longer reaches inboxes at Gmail and Microsoft 365, and what a WordPress site can use.

    • Free SMTP Servers for WordPress

      Thirteen free SMTP options for WordPress, ranked by whether the $0 tier has a stated end date. Free plans with no stated expiry and time-limited trials, separated.

    • Send Emails with Mandrill: WordPress plugin review

      Single-provider WordPress mailer for Mailchimp Transactional. Worth installing only when its three Mandrill-specific hooks earn the install over generic SMTP.

    • 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.

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

      Netcore Email API (formerly Pepipost) is an enterprise-focused relay. Pricing shifted to Growth and Enterprise tiers on the Customer Engagement Platform, billed by Monthly Tracked Users and sold by custom quote, with channel delivery separate. Free tier allows 100 emails/day. Most WordPress sites should use simpler alternatives.

    • SMTP2GO as a WordPress SMTP Server

      SMTP2GO is a transactional email relay with a free tier (1,000 emails/month) and no marketing overhead. Starter plan is $10/month. The right tool when WordPress just needs email to work.

    • 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.

    • Brevo (Sendinblue) as a WordPress SMTP Server

      Brevo’s free tier sends 300 emails/day from WordPress via SMTP or API. A marketing platform that also handles transactional email – good fit for some sites, more platform than others need.