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

How well this listing is tuned to rank in WordPress.org search, on the factors an owner controls. Not popularity, optimization.

Directory rank vs rivals

wp.org popularity rank over time · higher is better · when a rival's line climbs above yours, they've overtaken you

How often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.

Share of active installs on each version of this plugin. Green is the current release; a big slice on older versions is a user base that has stopped updating.

Refined from the date this plugin crossed into its current band.

At the current install trend, crossing 700K+ in roughly 121 days.

No paid tier is visible, so we don't put a figure on revenue or sale value: that would be guessing. The install base is a real asset to an acquirer, just not one public data lets us price. The recent download trend is too spiky to read.

Reviewers across the last two months are consistently pleased, praising fast setup, reliable delivery, and responsive support even on the free tier.

1. ★★★★★ idoico

   1mo ago

   very helpful plugin…like a lot

   Read on wp.org ↗
2. ★★★★★ topearner

   2mo ago

   FluentSMTP is a fast, lightweight, and dependable SMTP solution for WordPress. It delivers emails consistently, integrates smoothly with popular mail providers, and avoids the bloat that many other SMTP plugins suffer from. The setup is straightforward, the interface is clean, and the built‑in email logs make troubleshooting effortless. If you’re tired of missing WooCommerce order emails or unreliable WordPress notifications, FluentSMTP is a refreshingly simple and effective fix. It does exactly what an SMTP plugin should do — and it does it well.

   Read on wp.org ↗
3. ★★★★★ esscawpcom2303

   2mo ago

   I encountered an issue while testing the plugin and sending test emails whereby the sending email button was continuing to spin well after the email was successfully send and received. I received a prompt response to my ticket within an hour and after a few hours of back and forth of trouble shooting it was discovered that the issue was on my side. My GoDaddy server needed to have a couple of extensions turned on, which were disabled by default. After activating in cPanel the PDO and PDO_MYSQL PHP extensions the issue went away quite nicely and the SMTP plugin is now functioning fully. Great support deserving of a 5 star and I am sure the plugin will also perform on a 5-star level when I use it on my live site.

   Read on wp.org ↗
4. ★★★★★ foodellette

   2mo ago

   Very happy with it!

   Read on wp.org ↗
5. ★★★★★ richardpovall

   2mo ago

   Thank you for providing this free plugin which really is a big help to our little charity. We are able to send emails knowing they will be delivered. It’s easy to set up and there is a useful tester built in to the plugin.

   Read on wp.org ↗
6. ★★★★★ Roger Watts

   2mo ago

   I have used Fluent previously. I have moved a website to Milesweb (Brilliant Hosting!!!) and they support Fluent SMTP using Fluent’s “Other SMTP” as the mailer option, so all my settings were known to me. So very quick to set up, sent a test email and received the confirmation back.Done & Dusted!!!

   Read on wp.org ↗
7. ★★★★★ rrg

   2mo ago

   Cumpre o papel ao qual foi desenvolvido: envia emails sobre SMTP com maestria e é compatível com quaisquer provedores, incluindo AWS SES. E o melhor, totalmente de graça!

   Read on wp.org ↗
8. ★★★★★ brandcandyamy

   3mo ago

   Excellent! And free allows Microsoft connection! Highly recommend!

   Read on wp.org ↗

Recent releases and news for this plugin

1. — Version 2.2.95 Added Multiple Notification Channels for Email Failure Notification Added Pushover Notification Support Added toSend Email Sending Provider Added Option to disable API Keys Encryption Fixed PHP 8.4 Compatibility Issues 2.2.95
2. — Version 2.2.92 Fixed attachment handling issue with Elastic Email. Resolved import statement issue for SMTP2GO. Added PHP 8.4 support for FluentMail\App\Services\Mailer\Manager. Added new Amazon SES region: ap-northeast-3 (Asia Pacific 2.2.92
3. — Version 2.2.90 Added SMTP2GO Provider Improved Translations Added name attribute to attachment files Security: Updated Google SDK Library to the latest version & updated JS DomPurify Library Fixed: Email Failed Notification Issue with 2.2.90
4. — Version 2.2.83 Fix unserialize parameter issue 2.2.83
5. — Version 2.2.82 Security: Data Un-serialization issue fixed Sparkpost Recipient Issue fixed 2.2.82
6. — Version 2.2.81 Security: Nonce Verification fixed for slack REQUEST (props to patchstack) Fixed WooCommerce Emailing Issue fixed when enabled text mode Fixed Translation issues Custom Header support for Postmark 2.2.81

6 disclosed vulnerabilities on record for this plugin, all fixed in the current version. Sites on older versions stay exposed until they update.

1. High · 7.2 FluentSMTP <= 2.2.95 - Unauthenticated Stored Cross-Site Scripting via Recipient Display Name (to.name) in Email Logs ↗
   2026-08-05 CVE-2026-16636 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 2.2.95 Patched in 2.3.0
2. Medium · 4.3 FluentSMTP <= 2.2.80 - Cross-Site Request Forgery ↗
   2025-01-24 CVE-2025-24739 Cross-Site Request Forgery (CSRF) Affects <= 2.2.80 Patched in 2.2.81
3. Critical · 9.8 FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, MailGun, Postmark, Google and Any SMTP Provider <= 2.2.82 - Unauthenticated PHP Object Injection ↗
   2024-11-22 CVE-2024-9511 Deserialization of Untrusted Data Affects <= 2.2.82 Patched in 2.2.83
4. High · 7.2 FluentSMTP <= 2.2.4 - Unauthenticated Stored Cross-Site Scripting via Email Subject ↗
   2023-07-06 CVE-2023-3087 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 2.2.4 Patched in 2.2.5
5. Low · 3.8 FluentSMTP <= 2.2.2 - Authenticated (Author+) Stored Cross-Site Scripting via Email Logs ↗
   2023-03-03 CVE-2023-0219 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 2.2.2 Patched in 2.2.3
6. Medium · 5.5 FluentSMTP <= 2.0.0 - Authenticated (Admin+) Stored Cross-Site Scripting ↗
   2021-07-29 CVE-2021-24528 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects < 2.0.1 Patched in 2.0.1

Automated install-time checks, tested on PHP 8.1.12 · WP 7.0.1

Translated into 27 languages, 5 at 90% or more

Plus 3 more locales with partial translations.

Growth timeline

Install-tier crossings we have observed, and how long each tier took to outgrow

1. 2026-05-29 500K+ → 600K+ up after 1 days in tier
2. 2026-05-28 600K+ → 500K+ down after 1 days in tier
3. 2026-05-27 500K+ → 600K+ up after 159 days in tier
4. 2025-12-19 400K+ → 500K+ up after 226 days in tier
5. 2025-05-07 300K+ → 400K+ up after 267 days in tier
6. 2024-08-13 200K+ → 300K+ up after 292 days in tier
7. 2023-10-26 100K+ → 200K+ up

Competes with

The plugins that solve the same job, ranked by shared tags then reach, closest match first. The letter on the right is each plugin's health grade (A best, F worst).

• S Surbma | SMTP 20+ installs · 3.6★ · 3 shared tags D
• Mailgun for WordPress 80K+ installs · 3.8★ · 2 shared tags B
• WP Offload SES Lite 10K+ installs · 4.2★ · 2 shared tags A
• Connect SendGrid for Emails 900+ installs · 4.1★ · 2 shared tags D
• I iConvert Email Marketer 500+ installs · 3.6★ · 2 shared tags B
• Block All Emails 10+ installs · 4.0★ · 2 shared tags C

Embed this report card

Drop a live Pulse card for FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, toSend, Gmail and Any SMTP into a readme, a review or a deck. It updates itself.

FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, toSend, Gmail and Any SMTP: 600K+ active installs, 4.8★ (400 reviews). Plugin Pulse (WP Mayor), as of 2026-08-25. https://plugins.wpmayor.com/plugin/fluent-smtp