by Marco van Wieren 5 (40 reviews)

WPO365 | MICROSOFT 365 GRAPH MAILER

Name: WPO365 | MICROSOFT 365 GRAPH MAILER
Rating: 5.0 (40 reviews)
Author: Marco van Wieren

Send WordPress emails from a M365 / Exchange Online Mailbox using Microsoft Graph, leveraging OAuth for authentication which is more secure than SMTP

WPO365 ranks #1,665 among WordPress.org plugins with 10,000+ active installations, is #91 of 3,634 in the Communication category, a 5/5 rating from 40 reviews, and was last updated Oct 18, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Compatible with WP 7.1.4

v6.3 Current Version v6.3

Updated 2 weeks ago Last Update on 18 Oct, 2026

Refreshed 1 week ago Last Refreshed on

#91 of 3,634 in Communication Top 5% by installs Downloads +101.7% this week Actively maintained

View on WordPress.org

Rank

#1,665

— No change

Active Installs

10K+

-39.5%

KW Avg Position

18.3

0.5 better

Downloads

294.7K

+266 today

Support Resolved

— No change

Rating

100%

Review 5 out of 5

5 (40 reviews)

Next Milestone 20K

Total Progress 68%

10K+ 20K+

262

Ranks to Climb

Growth Needed

8,000,000

Active Installs

Pro

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Need 3,200 more installs to reach 20K+

Rank Changes

Current #1,665

Change

Best #

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Active Installs Growth

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Active Installs 0,000,000+

Growth +0.0%

Peak 0,000,000

Downloads Growth

Downloads

Growth

Peak

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Reviews & Ratings

5.0

40 reviews

Overall 100%

39 (98%)

0 (0%)

1 (3%)

0 (0%)

Support Threads Overview

Resolved

Unresolved

Total Threads

Resolved

Unresolved

Resolution Rate

Security History

Source: WPVulnerability

1 known vulnerability on record · 1 in the last 24 months · checked 1 week ago

Feb 23, 2025

WPO365 | MICROSOFT 365 GRAPH MAILER [wpo365-msgraphmailer] < 3.3

CVE-2025-1488 · Fixed in v3.3

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Plugin Details

Version: 6.3
Last Updated: Oct 18, 2026
Requires WP: 5.0+
Tested Up To: 7.1.4
PHP Version: 7.4 or higher
Author: Marco van Wieren

Support & Rating

Rating: ★ ★ ★ ★ ★ 5
Reviews: 40
Support Threads: 1
Resolved: 0%

Keywords

email microsoft phpmailer smtp wp_mail

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TL;DR

AI summary of the plugin's readme

This plugin is for WordPress site administrators using Microsoft 365 or Exchange Online who need to send transactional emails. It replaces SMTP-based email sending with the Microsoft Graph API, which is required since Microsoft disabled basic authentication over SMTP.