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FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, toSend, Gmail and Any SMTP

Von WPManageNinja·
Free WP Mail SMTP plugin - fix WordPress email deliverability with Gmail, Amazon SES, SendGrid, Mailgun, Cloudflare, Postmark, Brevo and any SMTP.
Amazon SES
mailgun
sendgrid
Bewertungen
4.8
Version
2.3.0
Aktive Installationen
600K
Zuletzt aktualisiert
Aug 5, 2026
FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, toSend, Gmail and Any SMTP

WordPress Mail SMTP Plugin For Any Email Service Provider

Are your WordPress emails not sending, landing in spam, or failing silently? FluentSMTP is the ultimate WP Mail SMTP plugin that fixes email deliverability by routing wp_mail() through your chosen email service — Gmail, Amazon SES, SendGrid, Mailgun, Cloudflare Email, toSend, Postmark, Brevo (Sendinblue), SparkPost, Outlook / Office 365, Zoho, or any SMTP host.

FluentSMTP connects natively to each provider’s API (not just SMTP), so your transactional and marketing emails ship fast, secure, and reach the inbox. Reconfigure your sender, enable logging, add real-time failure alerts, and route different senders to different providers — all from a single clean UI.

Connect as many email service providers as you want, and FluentSMTP will route your transactional and marketing emails automatically based on the From Address. This is one of the unique features that FluentSMTP has to offer.

💚 100% Free Forever — No Pro Version, No Upsells, No Paywalls 💚

FluentSMTP is 100% free and open source — and it always will be. There is no „pro“ version, no premium add-ons, no locked features, no email capture wall, no nagging upgrade prompts, no feature limits, and no paid tier. Every integration listed above — Amazon SES, Gmail, Outlook, SendGrid, Mailgun, Cloudflare, toSend, Postmark, Brevo, SparkPost, and the rest — is fully available at no cost.

You will never have to pay a cent to use any feature of FluentSMTP. We have pledged this as part of our „Five for the Future“ participation, an initiative started by the WordPress Foundation.

Our parent company WPManageNinja LLC builds commercial products for WordPress businesses and runs a stable, profitable business on those — which means FluentSMTP is our way of giving back to the WordPress community, not a funnel. 👉 Read why it’s 100% free (always) 👈

🎉 Available Email Service Connections

  • Amazon SES
  • Gmail OAuth
  • Google Workspace OAuth
  • Outlook / Office 365 OAuth
  • SendGrid
  • Mailgun
  • Cloudflare Email (new)
  • toSend
  • Brevo (Sendinblue)
  • Netcore (Pepipost)
  • Postmark
  • SparkPost
  • SMTP2GO
  • Elastic Email
  • Zoho über SMTP
  • Jeder SMTP E-Mail-Anbieter
  • More native integrations coming soon

🎉 Fluent SMTP features

Fluent SMTP is the fastest and most advanced WordPress Mail SMTP plugin on the market. We crafted this plugin for speed, reliability and scalability.

  • Real-Time Email Delivery
  • Email Routing to multiple email connections
  • Connect with Any Email Service Providers
  • Fallback-E-Mail-Verbindung
  • E-Mail Protokollierung
  • Resend Emails to any recipient
  • Ausführlicher Bericht
  • Daily Connection Health Monitoring
  • WP-CLI Support
  • Super fast UI powered by VueJS

Most importantly, this plugin is free and will always be free. 👉 Read why it’s 100% free (always) 👈

How does Fluent SMTP work?

Fluent SMTP improves your WordPress mail by intercepting wp_mail calls, and then connecting with your email service providers to ensure deliverability. It uses a direct email service API to send emails faster and securely. It means emails are sent using the provider’s direct API. For your native SMTP connections, it uses the proper host, port, and credentials to send your WP mails.

E-Mail-Protokollierung und Fehlerbehebung

Fluent SMTP protokolliert optional deine E-Mails, sodass du jederzeit den Status deiner Website überprüfen können. Du kannst auch fehlgeschlagene E-Mails erneut senden oder frühere E-Mails aus den E-Mail-Protokollen erneut versenden.

🎉 Amazon SES (Native API Connection)

With Fluent SMTP SES Connection, you get the powerful, low-cost, high deliverability managed infrastructure from Amazon. With the support of Fluent SMTP, it’s super easy to set up and configure Amazon SES API and send all your WordPress emails. The integration is with amazon’s latest SES API so your emails will be delivered faster and the right way.

Fluent SMTP optimizes the API connection so it creates CURL-Tunneling to send your emails even faster. With Amazon SES connection, You can send emails faster than any other plugins.

🎉 Gmail oder Google Workspace (native API-Verbindung)

Fluent SMTP – WP Mail Plugin bietet dir Optionen, um sich mit deinem Gmail- oder Google Workspace-E-Mails zu verbinden und E-Mails über deren API zu versenden. Es ist schnell und sicher.

🎉 SendGrid API Connection

SendGrid is the leading email sending service provider. You can rely on their globally distributed, cloud-based architecture for sending your WordPress Emails.

With Fluent SMTP, You can set up your SendGrid email service connection API in less than a minute. With this direct API connection, send your WordPress Mails fast and secure way.

Read about SendGrid connection documentation here

🎉 Mailgun Email API Connection

Mailgun is another leading email sending service provider and trusted by 225,000+ businesses. You can rely on their globally distributed, cloud-based architecture for sending your WordPress Emails.

Get your message to the right person at the right time with global infrastructure and industry expertise you can rely on.

With Fluent SMTP connection, You can set up your Mailgun email service connection in less than a minute. This is also a direct API connection so it’s faster than their SMTP connection.

Read about Mailgun connection documentation here

🎉 Brevo (formerly Sendinblue) API Connection

Brevo is a platform for growing businesses and it has a great transactional email service. They serve more than 80,000 companies around the world and send millions of emails every day.

If you use Brevo then with the help of Fluent SMTP, You can easily connect with its API and send Your WordPress emails via an API connection.

Read about Brevo connection documentation here

🎉 Netcore (formerly Pepipost) Email API Connection

Netcore is a complete sending partner with a user-friendly dashboard and many extensive functions such as statistics and real-time information.

With Fluent SMTP connection, You can set up your Netcore email service connection in less than a minute. With a direct API connection so it’s faster than their SMTP connection.

Read about Netcore API connection documentation here

🎉 SparkPost Email API Connection

SparkPost is a great email sending service with lots of analytics features. With Fluent SMTP, You can set up your SparkPost email service connection with your WordPress in less than a minute.

Read about SparkPost connection documentation here

🎉 Postmark API Connection

Postmark is a highly reliable transactional email service, known for fast delivery and top-tier inbox placement. FluentSMTP connects to Postmark’s Server API directly — paste your Server Token, pick a Message Stream, and your WordPress transactional emails ship through Postmark with full support for attachments, CC/BCC, Reply-To, and custom headers.

Read about Postmark connection documentation here

🎉 Elastic Email API Verbindung

Elastic Email ist eine hervorragende Lösung für den Versand von Transaktions- und Marketing-E-Mails mit einem benutzerfreundlichen Dashboard und zahlreichen Funktionen wie Statistiken und Echtzeitinformationen. Das Fluent SMTP-Plugin ist vollständig mit der offiziellen API kompatibel und ermöglicht den Versand deiner WordPress-E-Mails über Elastic Email.

🎉 Outlook oder Office365 API Verbindung

Fluent SMTP bietet dir Optionen, um eine Verbindung zu deinen Outlook- oder Office 365-E-Mails herzustellen und E-Mails über deren API zu versenden. Das ist schnell und sicher. Mithilfe des oAuth2-Authentifizierungssystems für die Verbindung kannst du die Verbindung ganz einfach einrichten und deine E-Mails mit Office 365-/Outlook-E-Mails versenden.

Lies die Dokumentation zum Verbinden von Office 365 E-Mail mit WordPress.

🎉 SMTP2GO Email API Verbindung

SMTP2GO ist eine praktische Lösung für den Versand von Transaktions- und Marketing-E-Mails mit einem benutzerfreundlichen Dashboard und vielen umfangreichen Funktionen wie Statistiken und Echtzeitinformationen. Das Fluent SMTP-Plugin ist vollständig kompatibel mit der offiziellen API und Sie können es verwenden, um deine WordPress-E-Mails über SMTP2Go zu versenden.

🎉 Cloudflare Email API Connection

Send WordPress emails through Cloudflare Email Sending using their native REST API. If your domain is already on Cloudflare, you can send transactional email directly from Cloudflare’s edge network — fast, reliable, and with built-in SPF/DKIM/DMARC. FluentSMTP handles the full request shape, including attachments, CC/BCC, Reply-To, and custom headers. The plugin also live-verifies your API token on save and on the connection info screen, so misconfigurations surface immediately.

🎉 toSend Email Sending Provider

toSend is a modern transactional email service with a simple API, per-domain analytics, and fast delivery. FluentSMTP ships a native toSend integration — paste your API key, set a verified From address, and you’re sending in under a minute. Failed sends are logged with full payloads so you can resend or debug without leaving WordPress. Read about toSend WordPress setup guide here

🎉 Anderer SMTP

Fluent SMTP plugin works with all major email services that offer SMTP connections such as Gmail, Yahoo, Microsoft Live, Zoho Mail, YandexMail, and any other email sending services.

You can set the following options:

  • Specify an SMTP Host.
  • Specify an SMTP Port.
  • Choose the Encryption option.
  • Choose to use SMTP authentication or not.
  • Specify the SMTP username and password.
  • That’s it 💯

Read about SMTP connection documentation here

🚀 MODERN. LEISTUNGSSTARK. SUPER SCHNELL 🚀

  • Built with VueJS as a Single-page Application.
  • Super fast and lean interface so anyone can use it without a learning curve.
  • Super awesome Dashboard with charts, graphs, and stats to show how your emails are doing.

🚀 Automatische E-Mail-Weiterleitung 🚀

With Fluent SMTP’s unique multiple connection driver features, You can add as many email connections as you want. Based on your From Email Address, Fluent SMTP will route your emails to the appropriate email driver and send them securely. This is one of the unique and useful features that Fluent SMTP offers.

Now, you can route your transactional emails with one connection and marketing emails with another connection.

🚀 E-Mail-Protokolle und Berichterstellung 🚀

Do you want to know how many and which emails your site is sending? Fluent SMTP got you covered. With powerful and super-fast email reporting and logs, you can easily view your WordPress emails. You can also view charts and graphs about your daily email stats. Also, you can resend any emails anytime you want. This is super helpful for storing emails for your records, auditing outgoing emails, and debugging during site development.

Optionally, You can turn off this feature, and then only failed emails will be logged so you can take a look. Fluent SMTP uses a custom database table so your WordPress tables will not be bloated (we care).

🚀 Connection Health Monitoring 🚀

An expired OAuth token or a removed API key stays invisible until the first email that needed it fails. Fluent SMTP checks every connection once a day, shows failures on the dashboard, and notifies you over your configured notification channels the moment a connection starts failing. Only newly broken connections notify, so a known issue will not nag you every day.

🚀 WP-CLI Support 🚀

Manage Fluent SMTP from the terminal, which matters most when the emails you need are the ones getting you into the admin:

  • wp fluent-smtp test – send a test email through any connection
  • wp fluent-smtp health – check every connection
  • wp fluent-smtp stats – sent and failed counts
  • wp fluent-smtp prune-logs – clean up old email logs

🚀 Real-time Notifications on Email Failures via Telegram, Slack, Discord and Pushover 🚀

Fluent SMTP has a unique feature that will notify you in real-time if any email fails to send. You can set up your Telegram, Slack, Discord or Pushover channel – as many as you want at once – and Fluent SMTP will send you a notification if any email fails to send. This is super helpful for debugging and monitoring your site’s email health.

🚀 Sicherheit 🚀

Fluent SMTP is built by professionals and security and scalability in mind. Fluent SMTP provides several options for you to keep your email sending secure and safe.

  • Ability to store your SMTP / API credentials in wp-config.php.
  • Ability to auto-delete old email logs.
  • Fluent SMTP connects your email service providers directly via an API.

= 🚀Unterstützung von Klartext mit HTML-E-Mails im Handumdrehen 🚀= FluentSMTP konvertiert deine HTML-E-Mails automatisch und im Handumdrehen in Klartext-E-Mails. Anschließend versendet es deine E-Mails mit einem mehrteiligen MIME-Typ. Dies ist äußerst hilfreich für die Zustellbarkeit von E-Mails und die Spam-Bewertung. Bitte stell sicher, dass du diese Funktion in den Einstellungen aktivierst.

👉 Credits 👈

Fluent SMTP is built by WPManageNinja LLC. And yes, It’s built by the creator of popular plugins like FluentForms, FluentCRM, Ninja Tables.

Fluent SMTP is a 100% free and open source plugin and we will never release a pro version. This does not mean that it lacks features. Our aim is to provide the ultimate SMTP/Email Service connection plugin for your WordPress Mails. We wrote an article about why we made this plugin and our plans for Fluent SMTP.

The full source code is hosted on GitHub and you are welcome to contribute to the development of this awesome WP Mail Plugin. 👉 View on GitHub 👈

Kompatibel mit..

Einfache Migration von WP Mail SMTP durch WPForms

If you are currently using WP Mail SMTP by WPForms plugin and want to migrate to FluentSMTP then that is super easy. Within few seconds you are migrated.

  • Installiere einfach das FluentSMTP-Plugin auf deiner Website.
  • Gehe zu Einstellungen -> FluentSMTP.
  • Es wird automatisch die vorherige Konfiguration aus „WP Mail SMTP by WPForms“ angezeigt.
  • Klicke auf den Button „Aus WP Mail SMTP importieren“ und fertig.
  • Deaktiviere „WP Mail SMTP by WPForms“ und verwende FluentSMTP.

One Click Migration from Easy WP SMTP

If you are currently using Easy WP SMTP plugin and want to migrate to FluentSMTP then that is super easy. Within a few seconds you are migrated from „Easy WP SMTP“.

  • Installiere einfach das FluentSMTP-Plugin auf deiner Website.
  • Gehe zu Einstellungen -> FluentSMTP.
  • Es wird automatisch die vorherige Konfiguration aus „Easy WP SMTP“ angezeigt.
  • Klicke auf den Button „Aus Easy WP SMTP importieren“ und fertig.
  • Deaktiviere „Easy WP SMTP“ und genieße FluentSMTP.

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