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Simple SMTP

by Casey · Email & Marketing

Also makes 1 other plugin · 2K+ installs across the portfolio →

Adds a simple mail configuration panel into your WordPress installation. Supports temporary logging and config variables.

Try it live opens a temporary test site in your browser, which can take about 20 seconds to load. Plugins that rely on outside services or a full server may not work completely there.

⚠ Stale

Health

C 69/100

Stale

Active installs

2K+

≈2.9K estimated

Momentum

+35%

downloads vs prior 30d

Biggest opportunity: One page off on “dispatch”. #16 puts you just past the first ten results, where almost all the clicks stop. The gap to close is small.

How scoring works →
69 Health · C
Maintenance 52/100
Rating quality 87/100
Support 70/100

69 health vs 66 average across 2,120 Email & Marketing plugins

Install conversion

How it's measured →

5.3%

of downloads still active

At least 2K of 38.1K lifetime downloads are still running, above its category: the median Email & Marketing plugin keeps 0.9%, across 1,294 plugins.

Downloads count every update, not just first installs, so older and more frequently released plugins read lower. Compare against other Email & Marketing plugins, not across the directory. wp.org reports active installs as the bottom of a band, so the real rate is this or higher.

Details

Version
1.3.4.1
Last updated
1.2y ago
Added
2020-03-17 · 6 yrs old
Requires WP
5.0
Tested up to
6.8.12
Requires PHP
7.0

Directory ranking optimization

How it's scored →

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

68 / 100

Room to improve

Most to gain: Support resolution

Update recency 60/100

Updated 446 days ago, past the ~180 days where wp.org starts discounting

WP compatibility 100/100

Tested up to WordPress 6.8.12, the current branch or newer

Rating quality 66/100

5.0★ over 11 reviews, smoothed to 4.26★ and held back under 25 reviews

Listing tuning 100/100

5 of 5 tags set · short description in place

Support resolution 0/100

0 of 1 support threads resolved in the last 2 months

To rank higher: Mark more forum threads resolved — the resolved ratio feeds the ranking.

Get the full rank-higher report →

Daily downloads

Since 5 Oct 2022 · 1,488 days · wp.org + Plugin Pulse archive

+35% vs prior 30d
8631 Oct 2026

30-day downloads

Rolling 30-day volume · peak 1.7K · peaks are release surges

1.5K31 Oct 2026

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

Simple SMTP · #4399youEmail Deliverability · #251SMTP Mailer · #588Gmail SMTP · #1861

Health trend

Composite health score, snapshotted daily

6931 Oct 2026

Update activity

How busy the existing users are, measured as downloads in the last 30 days for every 1,000 active sites. A spike means a new release everyone's pulling; a long, slow decline means an aging user base that updates less.

76431 Oct 2026

Release cadence

No release in a year
from wp.org release tags

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

0

releases in the last 12 months

1.2y ago

latest release · v1.3.4.1 · 11 Aug 2025

25

tagged releases on record

Recent releases

1.3.4.1 · 11 Aug 20251.3.4 · 9 Aug 20251.3.3 · 12 Oct 20231.3.2.2 · 12 Apr 20231.3.2.1 · 22 Oct 20221.3.2 · 1 Oct 20221.3.1.1 · 22 May 20221.3.1 · 9 Apr 20221.3 · 23 Jan 20221.2.3 · 12 Dec 20211.2.2 · 24 Oct 20211.2.1 · 14 Sep 20211.2 · 12 Sep 20211.1.2 · 11 Jul 2021

What its installed base runs

via wordpress.org

Share of active installs on each version of this plugin · 100% run the current release. Green is the current release; a big slice on older versions is a user base that has stopped updating.

v1.3 100%

Estimated active installs

The public count shows “2K+”. Our estimate pins where the real number sits.

tracked estimate
2K–3K ≈2.9K

Crossed into this band 22 months ago; a band this size takes about a year or more to cross, which places it about 90% of the way through.

Install history since 14 Aug 2021

2K31 Oct 2026

Recent reviews

All reviews on wp.org ↗
  1. ★★★★★ guguan123
    1.5y ago

    Perfectly and elegantly meets my needs, the best STMP plugin I’ve used so far.

    Read on wp.org ↗
  2. ★★★★★ alexmigf
    2.2y ago

    The Simple SMTP plugin truly lives up to its name, offering a straightforward and effective solution for managing email communications, especially when paired with MailPit. I’ve been using it locally with great success, and it has become an indispensable tool in my workflow.

    Read on wp.org ↗
  3. ★★★★★ Dan Claudiu G.
    3.3y ago

    Thank you for developing this module, it works great and currently it doesn’t include many other things that could bloat the site.

    Read on wp.org ↗
  4. ★★★★★ zoomstop
    3.3y ago

    Lots of bloated SMTP plugins happy to take your money. I appreciate the heck out of this free plugin. It’s open source, works perfect, and does the job needed and only the job needed.

    Read on wp.org ↗
  5. ★★★★★ lenasterg
    3.6y ago

    Does what it says.

    Read on wp.org ↗
  6. ★★★★★ Montri Udomariyah
    4.3y ago

    As it titles, Why need complex UI and dirt on other plugin. go for this one, it’s support WP-CLI. Save my day debuging host and mail server connection.

    Read on wp.org ↗
  7. ★★★★★ tony.h
    4.4y ago

    A simple (no thrills) SMTP plugin that works with environmental variables in the wp-config.php file. 1. Install and activate the plugin 2. Define the values in wp-config.php docker-compose users: Define the values in the docker-compose.yml file and then add the variable to the wp-config. For example: define( 'SMTP_PASS ', getenv_docker('SMTP_PASS', '') ); This topic was modified 4 years, 1 month ago by tony.h. This topic was modified 4 years, 1 month ago by tony.h. This topic was modified 4 years, 1 month ago by tony.h.

    Read on wp.org ↗
  8. ★★★★★ Themeisle
    4.6y ago

    Very well thought plugin with powerful configuration options to set up the SMTP connection.

    Read on wp.org ↗

Latest updates

via wp.org changelog

Recent releases and news for this plugin

  1. — Version 1.3.4.1 Changed Fixes for issues highlighted in #175 by @DanielHudson2 in https://github.com/soup-bowl/simple-smtp/pull/181 Contributors @DanielHudson2 made their first contribution in https://github.com/soup-bowl/simple-smtp/pu 1.3.4.1
  2. — Version 1.3.4 Changed Branding changes to comply with WordPress trademark policies. Bump the dev-dependencies group with 5 updates by @dependabot[bot] in https://github.com/soup-bowl/wp-simple-smtp/pull/155 Bump the dev-dependencies g 1.3.4
  3. — Version 1.3.3 Verified working with WordPress 6.3. Fix: $log_service deprecation notice ( #146 ). Added: None encryption setting ( #148 ). 1.3.3
  4. — Version 1.3.2.2 Verified working with WordPress 6.1 and 6.2. Fix: PHP warning on the CLI interface ( #140 ). Notice You may notice there’s 3 unexpected new files in the wp-simple-smtp directory: DOCKER_ENV docker_tag output.log These fi 1.3.2.2
  5. — Version 1.3.2.1 Rollback: #116 fix regressed due to relying on a function not found in the general scope. 1.3.2.1
  6. — Version 1.3.2 Added: Mail view now displays from, cc, bcc & the headers stored when logging is enabled. Fix: Infinite loop when a plugin hooks into the mail routine functions and sends an email ( #116 ). 1.3.2

Behavioral tests

via WP Hive

Automated install-time checks, tested on PHP 8.1.12 · WP 6.8.3

✓ Low memory footprint
✓ Low page-speed impact
✓ Runs on latest PHP + WP
✓ No PHP errors
✓ No JS errors
✓ Activates cleanly
✓ No resource errors
✓ No external HTTP errors
✓ Optimized database use
✕ Frequently updated

Languages

via translate.wordpress.org

Translated into 6 languages, 3 at 90% or more

Swedish 100%
Spanish (Chile) 91%
Spanish (Spain) 91%
French (France) 89%
Russian 89%
Greek 85%

AI assistants

How it's measured →

Whether ChatGPT and Claude name this plugin when asked the category question, and whether the readme gives them something to quote.

Not measured yet for this plugin’s topics. Its tracked searches are not among the measured topics. See the topics measured so far.

Readme readiness

7 of 8 pass · checked 28 Oct 2026

Can an assistant quote this readme? Eight deterministic checks over the wp.org listing, no model involved.

  • ✓ Says what it does "Adds a simple mail configuration panel into your WordPress installation. Supports temporary logging and con..."
  • ✓ Has a FAQ 10 questions in the FAQ.
  • ✓ FAQ asks real questions 8 of 10 read like questions a user would type.
  • ✓ Names who it is for Names its audience or use cases ("if you want", "use this").
  • ! Names what it works with Names no plugin, service or platform it works with.
  • ✓ Headings and lists 2 headings and 1 list.
  • ✓ Enough to quote 1,881 characters of description.
  • ✓ Tags match the text 3 of 5 tags appear in the text; "dispatch", "sender" do not.

Growth timeline

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

  1. 2025-01-09 1K+ → 2K+ up after 1 days in tier
  2. 2025-01-08 2K+ → 1K+ down after 1 days in tier
  3. 2025-01-07 1K+ → 2K+ up after 8 days in tier
  4. 2024-12-30 2K+ → 1K+ down after 1 days in tier
  5. 2024-12-29 1K+ → 2K+ up after 4 days in tier
  6. 2024-12-25 2K+ → 1K+ down after 1 days in tier
  7. 2024-12-24 1K+ → 2K+ up after 59 days in tier
  8. 2024-10-26 2K+ → 1K+ down after 4 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).

Embed this report card

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

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Preview card ↗

Simple SMTP: 2K+ active installs, 5.0★ (11 reviews). Plugin Pulse (WP Mayor), as of 2026-10-31. https://plugins.wpmayor.com/plugin/simple-smtp

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