Simple SMTP by Maileroo

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 · 98% 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.

At the current install trend, crossing 800+ in roughly 419 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. A small install base leaves thin data to model from.

1. ★★★★★ Vizou

   10mo ago

   This plugin works fantastically with Maileroo API or SMTP. I use it with Formidable Forms on several sites and it not only works perfectly, when it was first released, the developers kept improving it quickly and responded immediately to any questions I had. Highly recommended!

   Read on wp.org ↗
2. ★★★★★ richward1

   11mo ago

   I’m surprised this SMTP plugin hasn’t had more reviews or usage to date because I found it really easy to set up and use with its own Maileroo SMTP service. I’ve been looking for an easy SMTP setup for my client websites for them to receive form submission notifications. I want to use an API rather than username and password for better security and reliability. My clients have various email providers so I want something I can use for all of them. I like SMTP2Go but it is limited to 5 sending domains for its free SMTP service. I found Fluent SMTP very reliable to connect to other SMTP services but it has a limited number of services that it can connect to using API. I recommend this and Maileroo to anyone looking for a similar solution to reliably send form submissions from their sites.

   Read on wp.org ↗
3. ★★★★★ Olaf Lederer

   1.7y ago

   I’m using the Maileroo API option and emails are delivered so fast!Excellent SMTP Relay service and a nice plugin.

   Read on wp.org ↗
4. ★★★★★ 2000px

   1.7y ago

   Enter API key/SMTP settings, set senders details and test connection.That’s really all the plugin need to do and this does it.

   Read on wp.org ↗

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

Translated into 1 language, 1 at 90% or more

Growth timeline

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

1. 2026-03-23 600+ → 700+ up after 1 days in tier
2. 2026-03-22 700+ → 600+ down after 1 days in tier
3. 2026-03-21 600+ → 700+ up after 1 days in tier
4. 2026-03-20 700+ → 600+ down after 6 days in tier
5. 2026-03-14 600+ → 700+ up after 36 days in tier
6. 2026-02-06 500+ → 600+ up after 1 days in tier
7. 2026-02-05 600+ → 500+ down after 14 days in tier
8. 2026-01-22 500+ → 600+ up after 83 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 SMTP SendGrid Edition 500+ installs · 3.6★ · 5 shared tags D
• Zoho Mail for WordPress 20K+ installs · 3.8★ · 4 shared tags B
• Zoho ZeptoMail 5K+ installs · 4.2★ · 4 shared tags A
• S SMTP 700+ installs · 3.5★ · 4 shared tags D
• SMTP.com 80+ installs · 3.9★ · 4 shared tags B
• Simple SMTP Mailer 20+ installs · 3.6★ · 4 shared tags C

Embed this report card

Drop a live Pulse card for Simple SMTP by Maileroo into a readme, a review or a deck. It updates itself.

Simple SMTP by Maileroo: 700+ active installs, 5.0★ (4 reviews). Plugin Pulse (WP Mayor), as of 2026-08-29. https://plugins.wpmayor.com/plugin/simple-smtp-by-maileroo