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.
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.
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
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.
Room to improve
Most to gain: Support resolution
Updated 446 days ago, past the ~180 days where wp.org starts discounting
Tested up to WordPress 6.8.12, the current branch or newer
5.0★ over 11 reviews, smoothed to 4.26★ and held back under 25 reviews
5 of 5 tags set · short description in place
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 →Search visibility
How it's tracked →Directory searches this plugin turns up in, and which way each one is moving. WordPress.org publishes no history of search positions, so this starts the day we first tracked a keyword and never backfills.
32
Momentum
Losing ground
-1.4
Velocity
places per keyword, 26d
11%
Breadth
of keywords climbing, 26d
0.0
Acceleration
recent half vs earlier
wp.org is where the directory puts the plugin for that search. On merit is where it would sit if results were ranked on rating, support and updates, without the install boost. The last column is how far the wp.org position moved, from our first reading in the last 90 days to the latest.
| Keyword | wp.org | On merit | wp.org move, 90 days |
|---|---|---|---|
| dispatch your tag | #16 | #11 | down 1 |
| smtp mailer | #24 | #16 | — |
| smtp email solution | #23 | #21 | — |
| custom smtp | #24 | #16 | down 2 |
| email your tag | Not in the top 24 | ||
| mail your tag | Not in the top 24 | ||
| sender your tag | Not in the top 24 | ||
| smtp your tag | Not in the top 24 | ||
15 searches this plugin appeared in over the last 90 days, 4 listed. 11 left out as unrelated or noise (years, numbers, stray words). 4 of its tags aren't in the top 24 for their own search.
What to do about it
- 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.
- “email”, “mail” and “sender” aren't earning a slot. You list them, but you're not in the first 24 results for those searches. WordPress.org counts only your first five tags, so free the slot for a search you can win.
Daily downloads
Since 5 Oct 2022 · 1,488 days · wp.org + Plugin Pulse archive
30-day downloads
Rolling 30-day volume · peak 1.7K · peaks are release surges
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
Health trend
Composite health score, snapshotted daily
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.
Release cadence
No release in a yearHow 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
What its installed base runs
via wordpress.orgShare 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.
Estimated active installs
The public count shows “2K+”. Our estimate pins where the real number sits.
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
Recent reviews
All reviews on wp.org ↗- ★★★★★ guguan1231.5y ago
Perfectly and elegantly meets my needs, the best STMP plugin I’ve used so far.
Read on wp.org ↗ - ★★★★★ alexmigf2.2y 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 ↗ - ★★★★★ 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 ↗ - ★★★★★ zoomstop3.3y 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 ↗ - ★★★★★ lenasterg3.6y ago
Does what it says.
Read on wp.org ↗ - ★★★★★ Montri Udomariyah4.3y 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 ↗ - ★★★★★ tony.h4.4y 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 ↗ - ★★★★★ Themeisle4.6y ago
Very well thought plugin with powerful configuration options to set up the SMTP connection.
Read on wp.org ↗
Latest updates
via wp.org changelogRecent releases and news for this plugin
- — 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
- — 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
- — Version 1.3.3 Verified working with WordPress 6.3. Fix: $log_service deprecation notice ( #146 ). Added: None encryption setting ( #148 ). 1.3.3
- — 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
- — 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
- — 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 HiveAutomated install-time checks, tested on PHP 8.1.12 · WP 6.8.3
Languages
via translate.wordpress.orgTranslated into 6 languages, 3 at 90% or more
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 2026Can 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
- 2025-01-09 1K+ → 2K+ up after 1 days in tier
- 2025-01-08 2K+ → 1K+ down after 1 days in tier
- 2025-01-07 1K+ → 2K+ up after 8 days in tier
- 2024-12-30 2K+ → 1K+ down after 1 days in tier
- 2024-12-29 1K+ → 2K+ up after 4 days in tier
- 2024-12-25 2K+ → 1K+ down after 1 days in tier
- 2024-12-24 1K+ → 2K+ up after 59 days in tier
- 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).
-
Email Deliverability – SMTP Replacement, Email API Deliverability & Email Log 200K+ installs · 3.1★ · 3 shared tags B -
SMTP Mailer 70K+ installs · 4.5★ · 3 shared tags A -
Gmail SMTP 10K+ installs · 4.1★ · 3 shared tags A - W WP Simple Mail Sender 2K+ installs · 4.5★ · 3 shared tags D
-
SMTP by BestWebSoft 1K+ installs · 4.2★ · 3 shared tags C - S SMTP 600+ installs · 3.5★ · 3 shared tags D
Embed this report card
Drop a live Pulse card for Simple SMTP into a readme, a review or a deck. It updates itself.
<iframe src="https://plugins.wpmayor.com/embed/simple-smtp" width="480" height="300" style="border:0" loading="lazy" title="Simple SMTP — Plugin Pulse"></iframe> 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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