WPO365 | Mail Integration for Office 365 / Outlook

How well this listing is tuned to rank in WordPress.org search, on the factors an owner controls. Not popularity, optimization.

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

How often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.

Share 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.

Modeled within the band wp.org reports; tightens as we track daily.

No paid tier is visible, so we don't put a figure on revenue or sale value: that would be guessing. The install base is a real asset to an acquirer, just not one public data lets us price. A small install base leaves thin data to model from.

1. ★★★★★ yousefmansour

   3.6y ago

   Works like a charm and has a great tutorial on how to set it up. Thank you!

   Read on wp.org ↗
2. ★★★★★ yf1019

   4.2y 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 ↗
3. ★★★★★ gotaiwai

   4.2y 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 ↗
4. ★★★★★ kerckhaert

   4.2y ago

   Plugin works great, except in a multisite environment.

   Read on wp.org ↗
5. ★★★★★ taurus42se

   4.2y 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 ↗
6. ★★★★★ cahoskins

   4.5y 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 ↗
7. ★★★★★ Web and Website

   4.6y ago

   Simple does it and less of the headaches. Salute you!

   Read on wp.org ↗
8. ★★★★★ scyto

   4.6y 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 ↗

1 disclosed vulnerability on record for this plugin, fixed in the current version. Sites on older versions stay exposed until they update.

1. 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 ('Cross-site Scripting') Affects <= 1.9.0 Patched in 1.9.1

Automated install-time checks, tested on PHP 8.1.12 · WP 6.5.4

Translated into 2 languages, 2 at 90% or more

Growth timeline

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

1. 2026-08-28 2K+ → 1K+ down after 1 days in tier
2. 2026-08-27 1K+ → 2K+ up after 2 days in tier
3. 2026-08-25 2K+ → 1K+ down after 465 days in tier
4. 2025-05-17 3K+ → 2K+ down after 1 days in tier
5. 2025-05-16 2K+ → 3K+ up after 1 days in tier
6. 2025-05-15 3K+ → 2K+ down after 321 days in tier
7. 2024-06-28 4K+ → 3K+ down after 438 days in tier
8. 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 B
• NimblyMail SMTP — installs · 3.6★ · 2 shared tags B
• WP Mail SMTP by WPForms – The Most Popular SMTP and Email Log Plugin 4M+ installs · 4.8★ · 1 shared tag A
• FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, toSend, Gmail and Any SMTP 600K+ 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

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Drop a live Pulse card for WPO365 | Mail Integration for Office 365 / Outlook into a readme, a review or a deck. It updates itself.

WPO365 | Mail Integration for Office 365 / Outlook: 1K+ active installs, 4.9★ (26 reviews). Plugin Pulse (WP Mayor), as of 2026-08-29. https://plugins.wpmayor.com/plugin/mail-integration-365