GoSMTP – SMTP for WordPress vs WPO365 | Mail Integration for Office… (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
GoSMTP – SMTP for WordPress
500K+ active installs
Free
WPO365 | Mail Integration for Office…
2.0K+ active installs
Free
Quick Verdict
As of April 2026, WPO365 | Mail Integration for Office… has a higher user rating (4.9/5 from 26 reviews) while GoSMTP – SMTP for WordPress leads in active installations (500K+ vs 2.0K+). Both are free WordPress plugins. GoSMTP – SMTP for WordPress has accumulated 2.1M+ total downloads while WPO365 | Mail Integration for Office… has 59K+.
Detailed Comparison
| Metric | GoSMTP – SMTP for WordPress | WPO365 | Mail Integration for Office… | |
|---|---|---|---|
| Rating | 4.1/5 | ► | 4.9/5 |
| Total Reviews | 8 | ► | 26 |
| Active Installs | 500K+ | ◄ | 2.0K+ |
| Total Downloads | 2.1M+ | ◄ | 59K+ |
| Support Resolution | 0% | N/A | |
| Last Updated | 1 month ago | ◄ | 1 year ago |
| First Released | 2023 | 2020 | |
| Age | 3 years | 6 years | |
| WP Requires | 5.5+ | 5.5.3+ | |
| PHP Requires | 5.5+ | 7.1.1+ | |
| Business Model | Free | Free | |
| Latest Version | 1.1.9 | 1.9.2 |
Rating Breakdown
GoSMTP – SMTP for WordPress
WPO365 | Mail Integration for Office…
Download Trends
Over the past 30 days, GoSMTP – SMTP for WordPress averaged approximately 1,583 daily downloads while WPO365 | Mail Integration for Office… averaged 8.
Recent Reviews
GoSMTP – SMTP for WordPress Reviews
Works great 👍
A simple SMTP plugin that just works. it’s easy to setup and configure. Unlike a lot of the more popular SMTP plugins, it doesn’t clutter your dashboard with useless menus that are only there to upsel
Super
Make it works in 2 clicks. Thanks
Works perfectly
Reliable and does what is supposed to do.
WPO365 | Mail Integration for Office… Reviews
Awesome
Works like a charm and has a great tutorial on how to set it up. Thank you!
Super good mail plugin
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 works and is not difficult to configure
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
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Frequently Asked Questions
Is GoSMTP – SMTP for WordPress or WPO365 | Mail Integration for Office… more popular?
Which has better ratings — GoSMTP – SMTP for WordPress or WPO365 | Mail Integration for Office…?
Are GoSMTP – SMTP for WordPress and WPO365 | Mail Integration for Office… free?
Which plugin has better support — GoSMTP – SMTP for WordPress or WPO365 | Mail Integration for Office…?
Which plugin is updated more frequently?
Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.