WPO365 | Mail Integration for Office 365 / Outlook
by Marco van Wieren · Email & Marketing
Also makes 3 other plugins · 21.2K+ installs across the portfolio →
IMPORTANT - Please choose the WPO365 | MICROSOFT 365 GRAPH MAILER plugin instead. This plugin is no longer supported and does not receive updates.
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 63/100
Stale · Likely abandoned
Active installs
1K+
≈1.8K estimated
Momentum
+25%
downloads vs prior 30d
Biggest opportunity: Swap “365 smtp” for “office 365”. “365 smtp” isn't earning its slot: you're not in the first 24 results for its own search. “office 365” sits at #24 untagged, close enough for a declared tag to move it up. All five slots are taken, so one has to go.
63 health vs 66 average across 2,121 Email & Marketing plugins
Install conversion
How it's measured →1.6%
of downloads still active
At least 1K of 60.9K lifetime downloads are still running, above its category: the median Email & Marketing plugin keeps 0.9%, across 1,295 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
36/100Maintenance 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.
- Falling behind WordPress. Tested up to WordPress 6.1.16.
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: Update recency
Updated 864 days ago, past the ~180 days where wp.org starts discounting
Tested up to WordPress 6.1.16; the current branch is 6.8
4.9★ over 26 reviews, smoothed to 4.37★
5 of 5 tags set · short description in place
To rank higher: Last updated 864 days ago — ship an update; wp.org decays a listing's search weight after ~180 days.
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.
Not enough tracked days yet to call a direction. Momentum needs at least three keywords measured a week or more apart.
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 |
|---|---|---|---|
| office 365 | #24 | #15 | down 3 |
| 365 smtp your tag | Not in the top 24 | ||
| live smtp your tag | Not in the top 24 | ||
| oauth your tag | Not in the top 24 | ||
| outlook smtp your tag | Not in the top 24 | ||
| smtp your tag | Not in the top 24 | ||
2 searches this plugin appeared in over the last 90 days, 1 listed. 1 left out as unrelated or noise (years, numbers, stray words). 5 of its tags aren't in the top 24 for their own search.
What to do about it
- Swap “365 smtp” for “office 365”. “365 smtp” isn't earning its slot: you're not in the first 24 results for its own search. “office 365” sits at #24 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 · 1,489 days · wp.org + Plugin Pulse archive
30-day downloads
Rolling 30-day volume · peak 4.2K · 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
Rating trend
Star average over time · dips mark rough releases
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 · v1.9.2 · 20 Jun 2024
14
tagged releases on record
Recent releases
What its installed base runs
via wordpress.orgShare of active installs on each version of this plugin · 91% 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 “1K+”. Our estimate pins where the real number sits.
Crossed into this band 2 months ago and a band this size takes about a year or more to cross, so the real count is still just under 2K.
Install history since 17 Jan 2021
Recent reviews
All reviews on wp.org ↗- ★★★★★ yousefmansour3.8y ago
Works like a charm and has a great tutorial on how to set it up. Thank you!
Read on wp.org ↗ - ★★★★★ yf10194.4y ago
I really appreciate author’s contribution. I installed this plugin and it has been working great! Now I have upgraded my WordPress to version 6.0. This plugin is still working as usual. Can’t imagine it is free. This topic was modified 4 years, 1 month ago by yf1019.
Read on wp.org ↗ - ★★★★★ gotaiwai4.4y ago
Very nice plugin. Highly recommended. Create the app on O365. Take record of the client ID, secret, Tenant ID. Put them all into the plugin. Authorize. Then everything works fine. The plugin does not offer sending test email feature. But you can go into the WordPress user page and manually send email to a user. I successfully sent an email to a test user on the first attempt after configuration.
Read on wp.org ↗ - ★★★★★ kerckhaert4.4y ago
Plugin works great, except in a multisite environment.
Read on wp.org ↗ - ★★★★★ taurus42se4.4y ago
Started looking in to how to do this myself and then I found this plugin. No issues at all and free!
Read on wp.org ↗ - ★★★★★ cahoskins4.7y ago
I can’t believe this is free! I got it to work with godaddy’s managed wordpress. GoDaddy only issues O365 email accounts now. The instructions are very clear for such a complicated Microsoft process. Thanks to the author. I am so appreciative and relieved that it works.
Read on wp.org ↗ - ★★★★★ Web and Website4.7y ago
Simple does it and less of the headaches. Salute you!
Read on wp.org ↗ - ★★★★★ scyto4.8y ago
Well that was easy to setup, great instructions for anyone new to app registrations in azure. And even better you just taught me how to use shared mailboxes to avoid consuming o365 licenses for system accounts. IMHO don’t bother with the paid ones.
Read on wp.org ↗
Security history
via Wordfence IntelligenceThe 1 disclosed vulnerability is patched in the current version (1.9.2). Sites still on an older version should update.
- Patched Medium · 6.1 WPO365 | Mail Integration for Office 365 / Outlook <= 1.9.0 - reflected Cross-Site Scripting via error_description ↗2023-05-05 CVE-2023-32119 Improper Neutralization of Input During Web Page Generation Affects <= 1.9.0 Patched in 1.9.1
Vulnerability records provided by Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. License and terms.
CVE records: Copyright 1999-2026 The MITRE Corporation. CVE terms of use.
Behavioral tests
via WP HiveAutomated install-time checks, tested on PHP 8.1.12 · WP 6.5.4
Languages
via translate.wordpress.orgTranslated into 2 languages, 2 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
4 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 3 questions in the FAQ.
- ✓ FAQ asks real questions 3 of 3 read like questions a user would type.
- ! Names who it is for One audience phrase ("if you have"); say who the plugin is for and what they use it for.
- ! Names what it works with Names no plugin, service or platform it works with.
- ! Headings and lists 5 headings and 0 lists; assistants quote headed sections and bullet lists, not paragraphs.
- ✓ Enough to quote 2,493 characters of description.
- ✓ Tags match the text All 5 tags appear in the text.
Growth timeline
Install-tier crossings we have observed, and how long each tier took to outgrow
- 2026-08-28 2K+ → 1K+ down after 1 days in tier
- 2026-08-27 1K+ → 2K+ up after 2 days in tier
- 2026-08-25 2K+ → 1K+ down after 465 days in tier
- 2025-05-17 3K+ → 2K+ down after 1 days in tier
- 2025-05-16 2K+ → 3K+ up after 1 days in tier
- 2025-05-15 3K+ → 2K+ down after 321 days in tier
- 2024-06-28 4K+ → 3K+ down after 438 days in tier
- 2023-04-17 5K+ → 4K+ down after 19 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).
-
Gmail SMTP 10K+ installs · 4.1★ · 2 shared tags A -
WP Mail SMTP by WPForms – SMTP for Reliable Email Delivery with Gmail, Outlook, Amazon SES, Brevo, Other SMTP & More 4M+ installs · 4.8★ · 1 shared tag A -
FluentSMTP – WP Mail SMTP Plugin with Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, toSend, Gmail and Any SMTP 700K+ installs · 4.8★ · 1 shared tag A -
Easy WP SMTP – WordPress SMTP and Email Logs: Gmail SMTP, Office 365, Outlook, Custom SMTP, and more 500K+ installs · 4.6★ · 1 shared tag A -
GoSMTP – SMTP for WordPress 500K+ installs · 4.1★ · 1 shared tag B -
Post SMTP – Complete Email Delivery and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App 300K+ installs · 4.7★ · 1 shared tag A
Embed this report card
Drop a live Pulse card for WPO365 | Mail Integration for Office 365 / Outlook into a readme, a review or a deck. It updates itself.
<iframe src="https://plugins.wpmayor.com/embed/mail-integration-365" width="480" height="300" style="border:0" loading="lazy" title="WPO365 | Mail Integration for Office 365 / Outlook — Plugin Pulse"></iframe> WPO365 | Mail Integration for Office 365 / Outlook: 1K+ active installs, 4.9★ (26 reviews). Plugin Pulse (WP Mayor), as of 2026-11-01. https://plugins.wpmayor.com/plugin/mail-integration-365
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