Mailster SendGrid Integration
by EverPress · Email & Marketing
Also makes 27 other plugins · 117.1K+ installs across the portfolio →
Deliver Mailster newsletters with SendGrid via the Web API or SMTP, with API key checks, categories, and bounce syncing.
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
B 83/100
Few reviews
Active installs
900+
≈990 estimated
Momentum
+43%
downloads vs prior 30d
Biggest opportunity: Swap “email” and “newsletter” for “sendgrid smtp” and “bounce”. “email” isn't earning its slot: you're not in the first 24 results for its own search. “sendgrid smtp” sits at #7 untagged, close enough for a declared tag to move it up. “newsletter” isn't earning its slot: you're not in the first 24 results for its own search. “bounce” sits at #20 untagged, close enough for a declared tag to move it up. All five slots are taken, so one has to go.
83 health vs 66 average across 2,120 Email & Marketing plugins
Install conversion
How it's measured →3.2%
of downloads still active
At least 900 of 27.7K 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.
Excellent listing optimization
Most to gain: Rating quality
Updated 16 days ago
Tested up to WordPress 7.1.4, the current branch or newer
5.0★ over 1 review, smoothed to 4.12★ and held back under 25 reviews
5 of 5 tags set · short description in place
To rank higher: Too few reviews to rank on quality — nudge happy users to leave one.
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.
42
Momentum
Mixed: one swing, the rest drifting
+0.8
Velocity
places per keyword, 27d
25%
Breadth
of keywords climbing, 27d
-1.1
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 |
|---|---|---|---|
| mailsteresp your tag | #2 | #2 | 0 |
| sendgrid your tag | #3 | #21 | up 21 |
| mailster your tag | #3 | #15 | up 11 |
| sendgrid smtp | #7 | #22 | 0 |
| wp sendgrid smtp | #7 | #22 | 0 |
| bounce | #20 | #24 | 0 |
| email your tag | Not in the top 24 | ||
| newsletter your tag | Not in the top 24 | ||
15 searches this plugin appeared in over the last 90 days, 6 listed. 9 left out as unrelated or noise (years, numbers, stray words). 2 of its tags aren't in the top 24 for their own search.
What to do about it
- Swap “email” and “newsletter” for “sendgrid smtp” and “bounce”. “email” isn't earning its slot: you're not in the first 24 results for its own search. “sendgrid smtp” sits at #7 untagged, close enough for a declared tag to move it up. “newsletter” isn't earning its slot: you're not in the first 24 results for its own search. “bounce” sits at #20 untagged, close enough for a declared tag to move it up. All five slots are taken, so one has to go.
Daily downloads
Since 5 Oct 2022 · 1,487 days · wp.org + Plugin Pulse archive
30-day downloads
Rolling 30-day volume · peak 948 · 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
2.4y ago
latest release · v2.1.1 · 27 May 2024
7
tagged releases on record
Recent releases
What its installed base runs
via wordpress.orgShare of active installs on each version of this plugin · 95% 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 “900+”. Our estimate pins where the real number sits.
Crossed into this band 3 months ago and the previous band took 3.2 years to cross, so the real count is still just under 1K.
Install history since 8 Aug 2020
Recent reviews
All reviews on wp.org ↗- ★★★★★ josemanuel86.4y ago
I’ve switched do a different provider (Mailgun) meanwhile but this one works as promised. Thanks!
Read on wp.org ↗
Behavioral tests
via WP HiveAutomated install-time checks, tested on PHP 8.1.12 · WP 6.5.3
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
6 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 Short description names no action; say what the plugin does for the site.
- ✓ Has a FAQ 8 questions in the FAQ.
- ✓ FAQ asks real questions 8 of 8 read like questions a user would type.
- ✓ Names who it is for Names its audience or use cases ("use it", "if you need").
- ! Names what it works with Names no plugin, service or platform it works with.
- ✓ Headings and lists 2 headings and 2 lists.
- ✓ Enough to quote 2,050 characters of description.
- ✓ Tags match the text 4 of 5 tags appear in the text; "mailsteresp" does not.
Growth timeline
Install-tier crossings we have observed, and how long each tier took to outgrow
- 2026-08-16 1K+ → 900+ down after 1178 days in tier
- 2023-05-26 2K+ → 1K+ down after 1 days in tier
- 2023-05-25 1K+ → 2K+ up after 3 days in tier
- 2023-05-22 2K+ → 1K+ down after 1 days in tier
- 2023-05-21 1K+ → 2K+ up after 1 days in tier
- 2023-05-20 2K+ → 1K+ down after 1 days in tier
- 2023-05-19 1K+ → 2K+ up after 2 days in tier
- 2023-05-17 2K+ → 1K+ 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).
-
Mailster AmazonSES Integration 1K+ installs · 4.2★ · 3 shared tags A -
Mailster Gmail Integration 1K+ installs · 3.7★ · 3 shared tags B -
Mailster Google Analytics 800+ installs · 4.0★ · 3 shared tags B -
Mailster Live 500+ installs · 3.8★ · 3 shared tags D -
Mailster Mailgun Integration 400+ installs · 3.4★ · 3 shared tags D -
MC4WP: Mailchimp for WordPress 1M+ installs · 4.8★ · 2 shared tags A
Embed this report card
Drop a live Pulse card for Mailster SendGrid Integration into a readme, a review or a deck. It updates itself.
<iframe src="https://plugins.wpmayor.com/embed/mailster-sendgrid" width="480" height="300" style="border:0" loading="lazy" title="Mailster SendGrid Integration — Plugin Pulse"></iframe> Mailster SendGrid Integration: 900+ active installs, 5.0★ (1 reviews). Plugin Pulse (WP Mayor), as of 2026-10-31. https://plugins.wpmayor.com/plugin/mailster-sendgrid
Spotted a number that looks wrong? Report a data issue and we'll check it against the source.