WPO365 | MICROSOFT 365 GRAPH MAILER
by Marco van Wieren · Email & Marketing
Also makes 3 other plugins · 21.2K+ installs across the portfolio →
Send WordPress emails from a M365 / Exchange Online Mailbox using Microsoft Graph, leveraging OAuth for authentication which is more secure than SMTP
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
A 89/100
no flags
Active installs
10K+
≈19K estimated
Momentum
+4%
downloads vs prior 30d
Biggest opportunity: Swap “email”, “smtp” and “wp mail” for “bcc”, “graph” and “transactional”. “email” isn't earning its slot: you're not in the first 24 results for its own search. “bcc” sits at #7 untagged, close enough for a declared tag to move it up. “smtp” isn't earning its slot: you're not in the first 24 results for its own search. “graph” sits at #7 untagged, close enough for a declared tag to move it up. “wp mail” isn't earning its slot: you're not in the first 24 results for its own search. “transactional” sits at #16 untagged, close enough for a declared tag to move it up. All five slots are taken, so one has to go.
89 health vs 66 average across 2,120 Email & Marketing plugins
Install conversion
How it's measured →3.4%
of downloads still active
At least 10K of 295K 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.
This plugin shipped 17 releases in the last 12 months, and every existing install that updated counted as another download. wp.org publishes no split between first installs and updates, so we show the raw rate rather than guess at one.
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.
Well optimized
Most to gain: Support resolution
Updated 13 days ago
Tested up to WordPress 7.1.4, the current branch or newer
5.0★ over 40 reviews, smoothed to 4.50★
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.
39
Momentum
Losing ground
-0.2
Velocity
places per keyword, 28d
20%
Breadth
of keywords climbing, 28d
-0.1
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 |
|---|---|---|---|
| mailbox | #1 | #1 | up 1 |
| microsoft graph | #2 | #3 | 0 |
| microsoft 365 | #3 | #4 | 0 |
| phpmailer your tag | #3 | #3 | down 1 |
| microsoft your tag | #6 | #7 | 0 |
| graph | #7 | #8 | down 1 |
| mailer | #8 | #9 | 0 |
| wordpress mailbox | #3 | #3 | 0 |
| bcc | #7 | #7 | down 1 |
| 365 smtp | #6 | #5 | 0 |
| transactional | #16 | #12 | up 2 |
| oauth | #22 | #19 | down 3 |
| exchange | #22 | #16 | down 5 |
| smtp mailer | #18 | #12 | down 1 |
| staging | #20 | #20 | up 1 |
| wp phpmailer | #12 | #10 | 0 |
| exchange add on | #24 | #18 | down 3 |
| email your tag | Not in the top 24 | ||
| smtp your tag | Not in the top 24 | ||
| wp mail your tag | Not in the top 24 | ||
100 searches this plugin appeared in over the last 90 days, 17 listed. 83 left out as unrelated or noise (years, numbers, stray words). 3 of its tags aren't in the top 24 for their own search.
What to do about it
- Swap “email”, “smtp” and “wp mail” for “bcc”, “graph” and “transactional”. “email” isn't earning its slot: you're not in the first 24 results for its own search. “bcc” sits at #7 untagged, close enough for a declared tag to move it up. “smtp” isn't earning its slot: you're not in the first 24 results for its own search. “graph” sits at #7 untagged, close enough for a declared tag to move it up. “wp mail” isn't earning its slot: you're not in the first 24 results for its own search. “transactional” sits at #16 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 · 1,488 days · wp.org + Plugin Pulse archive
30-day downloads
Rolling 30-day volume · peak 23.2K · 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
Actively maintainedHow often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.
17
releases in the last 12 months
13d ago
latest release · v6.3 · 18 Oct 2026
61
tagged releases on record
Recent releases
What its installed base runs
via wordpress.orgShare of active installs on each version of this plugin. 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 “10K+”. Our estimate pins where the real number sits.
Crossed into this band 16 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 15 Aug 2022
Recent reviews
All reviews on wp.org ↗- ★★★★★ digitalsabc5mo ago
We switched to Microsoft 365, so it made sense to use that setup to send emails from our website (from an authenticated email, not spam perspective). This plug in guides you through the process of getting Microsoft 365 to work with your WordPress website. Follow the instructions carefully, it’s one of those “don’t do this if you’re sleepy” processes — especially if you’re not familiar or expert level with Exchange admin (or maybe that was just me 🤔) Recommended!
Read on wp.org ↗ - ★★★★★ mrslal6mo ago
I’m loving this plugin! I manage a lot of WordPress websites for clients who use Microsoft 365, and working out how to send emails properly from WordPress has been such a frustration lately. WPO365 Graph Mailer has made the process so much easier. Setup was straightforward, and once it’s configured, it just works. Using Microsoft Graph instead of SMTP feels much more reliable, and I’ve had great success using it across multiple client sites. I also had a question during setup and got a very fast response from the author, which was hugely appreciated. Great support makes such a difference. This plugin has saved me a lot of headaches — highly recommended for anyone managing WordPress sites with Microsoft 365 email.
Read on wp.org ↗ - ★★★★★ vthie8mo ago
My problems with Microsoft 365-Account sending were solved by the plugin in a minute. Ok, you have to go trough that Microsoft Azure registration routine, but then it rocked! Other plugins didnt do that! I am very happy! Thank you. Vera
Read on wp.org ↗ - ★★★★★ Efs9mo ago
It works as expected and is currently a strong option for enabling the Microsoft Graph API without a monthly subscription. The setup steps for connecting your Microsoft SMTP account are well documented.
Read on wp.org ↗ - ★★★★★ desarrollodivisa9mo ago
Seamless solution to send emails via Graph. The ease of setup is imply wonderful.
Read on wp.org ↗ - ★★★★★ Avrom11mo ago
This is a very good plugin, and while a little more complex to setup works very well. It is about the only Office365 compatible SMTP plugin I could find without an expensive Pro Subscription. I had nothing but problems with FluentSMTP and WP Mail SMTP is too expensive. So I am glad I found this plugin. At some point we’ll upgrade to pro to support the author.
Read on wp.org ↗ - ★★★★★ keramzyt11mo ago
Everything is working and problems with missing e-mails gone.
Read on wp.org ↗ - ★★★★★ Jmarc11mo ago
Perfect. Now I don’t have to worry about this for another 2 years when the password expires 😂 I have created a calendar entry but I wonder if Microsoft will send an email before expiration 🤔 Anyway, thanks a lot! This topic was modified 8 months ago by Jmarc.
Read on wp.org ↗
Latest updates
via wp.org changelogRecent releases and news for this plugin
- — Version 5.10 Fix: Fixed an issue where a double forward slash inside a query string value (e.g. “https://” within a redirect_to parameter) could be incorrectly collapsed to a single slash while the plugin sanitized the current reques 5.10
- — Version 5.9 Security Fix: Strengthened verification of certain AJAX requests to help prevent unauthorized changes to plugin settings. 5.9
- — Version 5.8 Fix: Refactored and updated core elements to improve overall security, maintainability and resilience. No functional changes. 5.8
- — Version 5.7 Fix: Fixed broken and outdated links in the plugin wizard. 5.7
- — Version 5.6 Fix: Updated phpseclib to version 3.0.52 (was 3.0.43), which patches CVE-2026-44167 . 5.6
- — Version 5.5 Improvement: Redirection to Microsoft for SSO / Authorization now consistently routes through the plugin’s custom endpoint /wpo/sso/start . This allows administrators to exclude a single endpoint from caching , ensuring 5.5
Security history
via Wordfence IntelligenceAll 2 disclosed vulnerabilities are patched in the current version (6.3). Sites still on an older version should update.
- Patched High · 7.2 WPO365 | MICROSOFT 365 GRAPH MAILER <= 6.2 - Unauthenticated Stored Cross-Site Scripting via Email Subject via wp_mail ↗2026-10-30 CVE-2026-107759 Improper Neutralization of Input During Web Page Generation Affects <= 6.2 Patched in 6.3
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 7.0
Languages
via translate.wordpress.orgTranslated into 2 languages, 0 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
5 of 8 pass · checked 31 Oct 2026Can an assistant quote this readme? Eight deterministic checks over the wp.org listing, no model involved.
- ✓ Says what it does "Send WordPress emails from a M365 / Exchange Online Mailbox using Microsoft Graph, leveraging OAuth for aut..."
- ! 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 Mentions Contact Form 7, LinkedIn.
- ✓ Headings and lists 22 headings and 19 lists.
- ✓ Enough to quote 4,125 characters of description.
- ✓ Tags match the text 3 of 5 tags appear in the text; "phpmailer", "wp_mail" do not.
Growth timeline
Install-tier crossings we have observed, and how long each tier took to outgrow
- 2025-07-09 9K+ → 10K+ up after 2 days in tier
- 2025-07-07 10K+ → 9K+ down after 1 days in tier
- 2025-07-06 9K+ → 10K+ up after 109 days in tier
- 2025-03-19 8K+ → 9K+ up after 69 days in tier
- 2025-01-09 7K+ → 8K+ up after 41 days in tier
- 2024-11-29 8K+ → 7K+ down after 14 days in tier
- 2024-11-15 7K+ → 8K+ up after 108 days in tier
- 2024-07-30 6K+ → 7K+ up 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).
-
MailerSend – Official SMTP Integration 2K+ installs · 3.4★ · 4 shared tags B -
SMTP Mailer 70K+ installs · 4.5★ · 3 shared tags A -
ActiveCampaign Postmark for WordPress 50K+ installs · 4.5★ · 3 shared tags C -
SMTP2GO for WordPress – Email Made Easy 40K+ installs · 4.8★ · 3 shared tags A -
Zoho Mail for WordPress 20K+ installs · 3.8★ · 3 shared tags B -
Send Emails with Mandrill 6K+ installs · 4.4★ · 3 shared tags A
Embed this report card
Drop a live Pulse card for WPO365 | MICROSOFT 365 GRAPH MAILER into a readme, a review or a deck. It updates itself.
<iframe src="https://plugins.wpmayor.com/embed/wpo365-msgraphmailer" width="480" height="300" style="border:0" loading="lazy" title="WPO365 | MICROSOFT 365 GRAPH MAILER — Plugin Pulse"></iframe> WPO365 | MICROSOFT 365 GRAPH MAILER: 10K+ active installs, 5.0★ (40 reviews). Plugin Pulse (WP Mayor), as of 2026-10-31. https://plugins.wpmayor.com/plugin/wpo365-msgraphmailer
Spotted a number that looks wrong? Report a data issue and we'll check it against the source.