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PluginCanary

WPO365 | MICROSOFT 365 GRAPH MAILER

by Marco van Wieren · 10,000+ active installs · Checked 3 Nov 2026
Healthy1 Warning

Healthy: vulnerability published 30 Oct 2026, fixed in 6.3.

90/ 100 Canary Score
Sub-scores for WPO365 | MICROSOFT 365 GRAPH MAILER
Ownership100
Maintenance100
Security85
Support70
Reputation85

How the score works

Active signals

Facts we detected, with links to the source.

  • WarningSEC-1Vulnerability published 30 Oct 2026, fixed in 6.3. Update to version 6.3 or later.30 Oct 2026Evidence

Ownership timeline

Who commits to the plugin's code on wordpress.org, over time.

Committers and their active periods
plugin-master4 Feb 2022 to 4 Feb 2022, 1 commits
wpo3654 Feb 2022 to 4 Nov 2026, 104 commits

2 committers recorded. No ownership changes recorded since 3 Nov 2026.

Maintenance

Last release
17 days ago
Releases, 24 months
27
Tested up to
7.1 current
Requires PHP
7.4 supported 8.2+
Releases per quarter for WPO365 | MICROSOFT 365 GRAPH MAILER
Q1 20242
Q2 20245
Q3 20243
Q4 20244
Q1 20254
Q2 20250
Q3 20253
Q4 20252
Q1 20261
Q2 20268
Q3 20264
Q4 20262

Last release 18 Oct 2026. Tested with WordPress 7.1 (current).

Support

0% of 1 support threads resolved in the last 2 months.

Security record

PublishedIssueCVSSAffectedFixed inDays to patch
30 Oct 2026WPO365 | MICROSOFT 365 GRAPH MAILER <= 6.2 - Unauthenticated Stored Cross-Site Scripting via Email Subject via wp_mail7.2<= 6.26.30
23 Feb 2025WPO365 | MICROSOFT 365 GRAPH MAILER <= 3.2 - Open Redirect via 'redirect_to' Parameter4.7<= 3.23.30

Source: Wordfence Intelligence.

Reputation

Average rating per quarter for WPO365 | MICROSOFT 365 GRAPH MAILER
Q1 20245.0
Q2 20245.0
Q3 20245.0
Q4 20245.0
Q1 20255.0
Q2 20255.0
Q3 20255.0
Q4 20255.0
Q1 20265.0
Q2 20265.0
Q4 20265.0

Average rating stayed at 5.0 between Q1 2024 and Q4 2026.

Rating distribution
5 star39
4 star0
3 star1
2 star0
1 star0

Momentum

10,000+ active installs. History builds with each weekly snapshot.

Weekly downloads, last 27 weeks
Weekly downloads for WPO365 | MICROSOFT 365 GRAPH MAILER
4 May 2026404
11 May 2026741
18 May 20269,598
25 May 20261,892
1 Jun 20265,133
8 Jun 20262,097
15 Jun 20261,529
22 Jun 20269,158
29 Jun 20262,216
6 Jul 20261,601
13 Jul 20265,661
20 Jul 20266,628
27 Jul 20261,865
3 Aug 20261,708
10 Aug 2026987
17 Aug 20261,296
24 Aug 2026835
31 Aug 202610,182
7 Sep 20262,553
14 Sep 20261,682
21 Sep 20261,686
28 Sep 20262,604
5 Oct 20266,003
12 Oct 20263,386
19 Oct 20266,090
26 Oct 20262,467
2 Nov 2026365

Weekly downloads over the last 4 weeks are 8% below the 27-week average.

Healthier alternatives

Same category, higher Canary Score. Never sponsored.

WP Mail SMTP by WPForms - SMTP for Reliable Email Delivery with Gmail, Outlook, Amazon SES, Brevo, Other SMTP & MoreScore 93 · 4,000,000+Easy WP SMTP - WordPress SMTP and Email Logs: Gmail SMTP, Office 365, Outlook, Custom SMTP, and moreScore 92 · 500,000+FluentSMTP - WP Mail SMTP Plugin with Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, toSend, Gmail and Any SMTPScore 91 · 700,000+Stop WP Emails Going to SpamScore 91 · 10,000+WP Offload SES LiteScore 91 · 10,000+

Facts

Version6.3
AuthorMarco van Wieren
Added4 Feb 2022
Last updated18 Oct 2026
Active installs10,000+
Requires WordPress5.0
Tested up to7.1.4
Requires PHP7.4
CategoryCommunication & Messaging > SMTP & Email Delivery Services
Tagssmtp, email, wp_mail, microsoft, phpmailer

Other plugins by this author: WPO365 | SEAMLESS WORDPRESS + MICROSOFT INTEGRATION (WPO365 | LOGIN), WPO365 | Mail Integration for Office 365 / Outlook, WPO365 | SAMESITE

Questions

Is WPO365 | MICROSOFT 365 GRAPH MAILER still maintained?

WPO365 | MICROSOFT 365 GRAPH MAILER was last updated on 18 Oct 2026. Its Canary status is Healthy.

Is WPO365 | MICROSOFT 365 GRAPH MAILER safe?

WPO365 | MICROSOFT 365 GRAPH MAILER has no open unpatched vulnerabilities on record. 2 vulnerabilities were published in the last 24 months. Its Canary status is Healthy.

Who owns WPO365 | MICROSOFT 365 GRAPH MAILER?

The wordpress.org author is Marco van Wieren. Recent committers: wpo365, plugin-master. We have recorded no ownership change.

What can I use instead of WPO365 | MICROSOFT 365 GRAPH MAILER?

Plugins in the same category with a higher Canary Score: WP Mail SMTP by WPForms - SMTP for Reliable Email Delivery with Gmail, Outlook, Amazon SES, Brevo, Other SMTP & More, Easy WP SMTP - WordPress SMTP and Email Logs: Gmail SMTP, Office 365, Outlook, Custom SMTP, and more, FluentSMTP - WP Mail SMTP Plugin with Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, toSend, Gmail and Any SMTP, Stop WP Emails Going to Spam, WP Offload SES Lite.

Data: wordpress.org Plugins API, plugins SVN and Trac, wordpress.org reviews, Wordfence Intelligence.Plugin data refreshed 3 Nov 2026.Report a data issue