WPO365 | MICROSOFT 365 GRAPH MAILER
Send WordPress emails from a M365 / Exchange Online Mailbox using Microsoft Graph, leveraging OAuth for authentication which is more secure than SMTP
4.9(37 reviews)
·10K+ active installs·Updated 2 days agoAs of April 2026, WPO365 is a WordPress smtp plugin with 10K+ active installations and a 4.9/5 rating from 37 reviews. It has been downloaded 190K+ times in total. Requires WordPress 5.0+ and PHP 7.4+. Available on WordPress.org since 2022. Actively maintained — updated within the last month. Downloads are up 1409% this week. Top alternative: WP Mail SMTP by WPForms – The Most….
4.9/537 reviews
10K+active installs
190K+total downloads
4 yearssince 2022
Overview
WPO365 | MS GRAPH MAILER provides you with a modern, reliable and efficient way to send WordPress transactional emails from one of your Microsoft 365 / Exchange Online / Mail enabled accounts.
The plugin re-configures your WordPress website to send emails using the Microsoft Graph API instead of – for example – SMTP. Sending WordPress emails using the Microsoft Graph API has become the only available alternative after Microsoft has disabled basic authentication (username and password) over the SMTP protocol.
DELIVERY
- Send WordPress transactional emails from one of your Microsoft 365 Exchange Online / Mail enabled accounts using Microsoft Graph instead of – for example – SMTP.
- Choose between delegated (send mail as a user) and application-level (send mail as any us…
Screenshots
Ratings & Reviews
4.937 reviews
5 ★
36
4 ★
0
3 ★
1
2 ★
0
1 ★
0
Recent Reviews
Outstanding Plugin
by vthie·3 weeks ago·1 reply
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
Very good solution for a free option
by Efs·1 month ago·1 reply
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.
A great and fast solution
by desarrollodivisa·2 months ago·1 reply
Seamless solution to send emails via Graph. The ease of setup is imply wonderful.
Better than other Office365 SMTP plugins.
by Avrom·3 months ago·1 reply
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.
Works as promised. Great plugin!
by keramzyt·4 months ago·3 replies
Everything is working and problems with missing e-mails gone.
Download Trends
Today: 3KYesterday: 538This week: 8KPeriod total: 70K
Compatibility
| WordPress | 5.0+ requiredTested up to 6.9.4 |
| PHP | 7.4+ required |
Version Adoption
v4.2
70.9%
Other
22.9%
v4.0
6.2%
Top Alternatives to WPO365 | MICROSOFT 365 GRAPH MAILER
Frequently Asked Questions
Changelog
5.0.1
- Fix: Prevented duplicate or incorrect type attributes on script tags, which could cause “Cannot use import statement outside a module” errors. [MAILER]
Contributors
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.