Solid Mail – SMTP email and logging made by SolidWP

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 · 34% run the current release. 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.

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.

1. ★★★★★ h360

   1.1y ago

   When the plugin is running under PHP8.4, it will cause the website to crash

   Read on wp.org ↗
2. ★★★★★ Hoang Nam

   1.1y ago

   I’m satisfied with version 1.2.7.The newer updates add unnecessary features.With version 1.2.7, the emails are reliably delivered to the inbox and even marked as important.But with the latest versions, emails often go straight to the spam folder.

   Read on wp.org ↗
3. ★★★★★ maxim23

   1.8y ago

   Easy setup of complex communications under the hood thanks to the developers<font _mstmutation=”1″></font>

   Read on wp.org ↗
4. ★★★★★ wfrank94

   1.8y ago

   Update: 2.1.2 Fixed my issue, Plugin Works as expected Since Version 2.0.0 or Solid Mail rebranding, I have no UI visible anymore and cannot see any Logs or change any settings. Plugin still works tho, but not being able to view Logs and change Settings is not good. Very bad update I must say!! This topic was modified 1 year, 9 months ago by wfrank94. This topic was modified 1 year, 8 months ago by wfrank94. Reason: Update fixed my issue

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

   1.9y ago

   This plugin was earlier called WP-SMTP and was a simple but perfect working SMTP client in the style of WordPress GPL. Now, it is a non WordPress design conform plugin with an angry fruit salad UI that collects data: “We may collect your name, email address, physical address, and phone number if you provide it to us”. It is now not longer hold by a community member but a company called CloudOne Digital. Say goodbye to freedom of the software and count the days until there is a “pro” or “premium” version. This topic was modified 1 year, 10 months ago by WebCodePoet.

   Read on wp.org ↗
6. ★★★★★ d095614

   2.2y ago

   SMTP Error: Could not authenticate. gmail. It’s not working. I think it’s google crap. When configuring the plugin, it does not display Google’s “approval” window, which in recent years necessarily appears when configuring mail clients. This topic was modified 2 years, 1 month ago by d095614.

   Read on wp.org ↗
7. ★★★★★ zamaan

   2.8y ago

   simply awesome. very easy to config and test mail service.

   Read on wp.org ↗
8. ★★★★★ Alex Molina Maranho

   4.2y ago

   Muito fácil de configurar. Funciona muito bem.

   Read on wp.org ↗

Recent releases and news for this plugin

1. 2026-05-11 Version 3.0.0 Tweak – Updated branding from SolidWP to Kadence. Tweak – Updated branding references from StellarWP to Nexcess. 3.0.0
2. 2026-02-11 Version 2.2.3 Fix – Ensure mail logs are saved even if the message contains multibyte characters or is too long. 2.2.3
3. 2025-09-16 Version 2.2.2 Fix – All emails are now logged, even if no connection is configured or the email was sent without Solid Mail. Fix – Addressed an email sending error on WordPress below 6.8 when no connection is configured. Fix – Don’t a 2.2.2
4. 2025-08-26 Version 2.2.1 Fix – Addressed an issue where the active connection was not marked as a default, and emails were not logged after upgrading to 2.2.0. 2.2.1
5. 2025-08-18 Version 2.2.0 Feature – Support multiple active connections, select the appropriate connection based on the outgoing email address. Feature – Retry email sending with fallback connections. Feature – Possibility to clear all logs. Twea 2.2.0
6. 2025-04-28 Version 2.1.6 Security – Fix XSS vulnerability on the Logs screen. Thanks to zer0gh0st for responsibly disclosing this issue. Security – Fix object injection vulnerability. Security – Update StellarWP Telemetry library to improve auth 2.1.6

2 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 Solid Mail – SMTP email and logging made by SolidWP <= 2.1.5 - Unauthenticated Stored Cross-Site Scripting via Email ↗
   2025-05-22 CVE-2025-1123 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 2.1.5 Patched in 2.1.6
2. High · 7.2 WP SMTP 1.2 - 1.2.6 - Authenticated (Admin+) SQL Injection ↗
   2024-04-25 CVE-2024-1789 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') Affects 1.2 - 1.2.6 Patched in 1.2.7

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

Translated into 13 languages, 3 at 90% or more

Growth timeline

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

1. 2026-06-05 70K+ → 60K+ down after 400 days in tier
2. 2025-05-01 80K+ → 70K+ down after 1 days in tier
3. 2025-04-30 70K+ → 80K+ up after 1 days in tier
4. 2025-04-29 80K+ → 70K+ down after 7 days in tier
5. 2025-04-22 70K+ → 80K+ up after 1 days in tier
6. 2025-04-21 80K+ → 70K+ down after 19 days in tier
7. 2025-04-02 70K+ → 80K+ up after 71 days in tier
8. 2025-01-21 80K+ → 70K+ down after 355 days in tier

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).

• WP Mail Logging 300K+ installs · 4.7★ · 3 shared tags A
• Email Deliverability – SMTP Replacement, Email API Deliverability & Email Log 200K+ installs · 3.0★ · 3 shared tags B
• Check & Log Email – Easy Email Testing & Mail logging 100K+ installs · 4.8★ · 3 shared tags A
• WP Mail SMTP by WPForms – The Most Popular SMTP and Email Log Plugin 4M+ installs · 4.8★ · 2 shared tags A
• Easy WP SMTP – WordPress SMTP and Email Logs: Gmail SMTP, Office 365, Outlook, Custom SMTP, and more 500K+ installs · 4.6★ · 2 shared tags A
• GoSMTP – SMTP for WordPress 500K+ installs · 4.1★ · 2 shared tags B

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Drop a live Pulse card for Solid Mail – SMTP email and logging made by SolidWP into a readme, a review or a deck. It updates itself.

Solid Mail – SMTP email and logging made by SolidWP: 60K+ active installs, 4.2★ (52 reviews). Plugin Pulse (WP Mayor), as of 2026-08-25. https://plugins.wpmayor.com/plugin/wp-smtp