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Mailster Mailgun Integration

by EverPress · Email & Marketing

Also makes 27 other plugins · 117.1K+ installs across the portfolio →

Uses Mailgun to deliver emails for the Mailster Newsletter Plugin for WordPress.

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⚠ Likely abandoned⚠ Few reviews

Health

D 45/100

Stale · Likely abandoned · Few reviews

Active installs

400+

≈500 estimated

Momentum

—

no download trend yet

Biggest opportunity: “mailgun”, “mailster” and “newsletter” 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.

How scoring works →
45 Health · D
Maintenance 18/100
Rating quality 59/100
Support 70/100

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

Install conversion

How it's measured →

2.3%

of downloads still active

At least 400 of 17.3K 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.

Removal-risk signals

28/100

Maintenance and integrity signals that tend to precede a WordPress.org removal. Not an official status, a heads-up to act.

  • Not actively maintained. No update in about 2 years.

Details

Version
1.5.1
Last updated
2.4y ago
Added
2017-09-15 · 9 yrs old
Requires WP
6.0
Tested up to
6.5.14
Requires PHP
—

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.

62 / 100

Room to improve

Most to gain: Update recency

Update recency 26/100

Updated 887 days ago, past the ~180 days where wp.org starts discounting

WP compatibility 77/100

Tested up to WordPress 6.5.14; the current branch is 6.8

Rating quality 54/100

2.3★ over 6 reviews, smoothed to 3.91★ and held back under 25 reviews

Listing tuning 100/100

5 of 5 tags set · short description in place

To rank higher: Last updated 887 days ago — ship an update; wp.org decays a listing's search weight after ~180 days.

Get the full rank-higher report →

Daily downloads

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

— vs prior 30d
031 Oct 2026

30-day downloads

Rolling 30-day volume · peak 536 · peaks are release surges

17231 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

Mailster Mailgun Int · #9160youMailster Mailjet · #10376Mailster MailerSend · #13304Mailster AmazonSES I · #5260

Rating trend

Star average over time · dips mark rough releases

2.331 Oct 2026

Health trend

Composite health score, snapshotted daily

4531 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.

43031 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

2.4y ago

latest release · v1.5.1 · 27 May 2024

7

tagged releases on record

Recent releases

1.5.1 · 27 May 20241.5 · 9 Oct 20221.4 · 29 Jul 20211.3 · 3 Aug 20201.2 · 30 Dec 20191.1 · 3 Sep 20181.0 · 15 Sep 2017

What its installed base runs

via wordpress.org

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.

v1.5 98%
v1.2 2.1%

Estimated active installs

The public count shows “400+”. Our estimate pins where the real number sits.

tracked estimate
400–500 ≈500

Crossed into this band yesterday and a band this size takes about a year or more to cross, so the real count is still just under 500.

Install history since 28 May 2022

40031 Oct 2026

Recent reviews

All reviews on wp.org ↗
  1. ★★★★★ josemanuel8
    6.4y ago

    I cannot understand the other here as this plugin does excatly what it says and receives updates from time to time.

    Read on wp.org ↗
  2. ★★★★★ volsurterre
    6.5y ago

    It looses the api key, one it was working and the mails were sent, then no way to make it work again…. I ave several accounts in mailgun… Sometomes only the sand bow appears, sometimes the other appear !!!! Incredebly unstable !

    Read on wp.org ↗
  3. ★★★★★ Andrea
    6.9y ago

    Just as the headline: it does the job.

    Read on wp.org ↗
  4. ★★★★★ brede
    7.1y ago

    Every time I switch over to mailgun plugin I get Cron Lock. All parameter have to be so low that it’s hopeless to use this. I have to set the number of email to 20 and 150ms between each and then is’s working for 2 or 3 cycles. I use cron job on siteground to run the job and this is configured to run every 30 min. So my newsletter use 2-3 weeks to get out. I never gets cron lock when using simple smtp.

    Read on wp.org ↗
  5. ★★★★★ kenwilboy
    7.1y ago

    This plugin have some serious flaw, I tried everything using this plug in, it won’t complete my email delivery list. This error kept on appearing: ‘to’ parameter is not a valid address. please check documentation. The worst of it, it doesn’t have email log funchtion, so I could not know what went wrong, I suspect it was a bug in the software, using Post SMTP Mailer/Email Log solved all of my problems and it also had email log function, If there is any errors in the future, I could easily track it. This topic was modified 6 years, 9 months ago by kenwilboy.

    Read on wp.org ↗
  6. ★★★★★ Loosie94
    7.7y ago

    I have tried this plugin, and set everything right in Mailgun itself. I was keep getting the following error: ‘to’ parameter is not a valid address. please check documentation. While searching long for as solution, I tried WP SMTP, and the error was gone and my campaign was sending again.

    Read on wp.org ↗

Behavioral tests

via WP Hive

Automated install-time checks, tested on PHP 8.1.12 · WP 6.5.3

✓ 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 2 languages, 1 at 90% or more

English (UK) 92%
Spanish (Spain) 22%

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

1 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 Short description names no action; say what the plugin does for the site.
  • ! Has a FAQ No FAQ section.
  • ! FAQ asks real questions No FAQ to judge.
  • ! Names who it is for Never says who the plugin is for or what they use it for.
  • ! Names what it works with Names no plugin, service or platform it works with.
  • ! Headings and lists 1 heading and 0 lists; assistants quote headed sections and bullet lists, not paragraphs.
  • ! Enough to quote 258 characters of description; under 1,000 there is little to quote.
  • ✓ Tags match the text 3 of 5 tags appear in the text; "deliverymethod", "mailsteresp" do not.

Growth timeline

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

  1. 2026-10-30 500+ → 400+ down after 1 days in tier
  2. 2026-10-29 400+ → 500+ up after 1 days in tier
  3. 2026-10-28 500+ → 400+ down after 1 days in tier
  4. 2026-10-27 400+ → 500+ up after 4 days in tier
  5. 2026-10-23 500+ → 400+ down after 171 days in tier
  6. 2026-05-05 600+ → 500+ down after 1 days in tier
  7. 2026-05-04 500+ → 600+ up after 4 days in tier
  8. 2026-04-30 600+ → 500+ down after 1 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 Mailster Mailgun Integration into a readme, a review or a deck. It updates itself.

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Preview card ↗

Mailster Mailgun Integration: 400+ active installs, 2.3★ (6 reviews). Plugin Pulse (WP Mayor), as of 2026-10-31. https://plugins.wpmayor.com/plugin/mailster-mailgun

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