SMTP Mailer vs Stop WP Emails Going to Spam (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Stop WP Emails Going to Spam
10K+ active installs
Free
Quick Verdict
As of April 2026, Stop WP Emails Going to Spam has a higher user rating (4.8/5 from 51 reviews) while SMTP Mailer leads in active installations (70K+ vs 10K+). Both are free WordPress plugins. SMTP Mailer has accumulated 1.4M+ total downloads while Stop WP Emails Going to Spam has 166K+.
Detailed Comparison
| Metric | SMTP Mailer | Stop WP Emails Going to Spam | |
|---|---|---|---|
| Rating | 4.5/5 | ► | 4.8/5 |
| Total Reviews | 65 | ◄ | 51 |
| Active Installs | 70K+ | ◄ | 10K+ |
| Total Downloads | 1.4M+ | ◄ | 166K+ |
| Support Resolution | N/A | N/A | |
| Last Updated | 1 month ago | ◄ | 3 months ago |
| First Released | 2015 | 2018 | |
| Age | 11 years | 8 years | |
| WP Requires | 6.9+ | 4.8.1+ | |
| PHP Requires | false+ | 7.4+ | |
| Business Model | Free | Free | |
| Latest Version | 1.1.25 | 2.2.1 |
Rating Breakdown
SMTP Mailer
Stop WP Emails Going to Spam
Download Trends
Over the past 30 days, SMTP Mailer averaged approximately 449 daily downloads while Stop WP Emails Going to Spam averaged 38.
Recent Reviews
SMTP Mailer Reviews
A basic and effective plugin. The best.
For my WordPress site, I didn’t want complex plugins with lots of options or that consumed a lot of resources. I was looking for something simple. At first, it didn’t work well because it wasn’t 10
Simple Setup, Works Great with CF7
I’ve tried some of the better-known ‘big name’ SMTP plugins, but none of them did exactly what I needed with CF7 sending both Mail and Mail (2) seamlessly. This one just works with no complications or
Simple needs, simple to use
I needed something quick and easy when a contact page on an old site started breaking for some reason and I decided to redo it with new plugins for the form and mailer. This plugin got me going and fi
Stop WP Emails Going to Spam Reviews
Great Plugin & Kind Responsive Developer
Plugin works great and does exactly as its name implies. Developer is also very kind, helpful and responsive even though this is a free plugin with no premium version. Thank you very much for your con
Simple and excellent
Solved my outbound email validation problems with default settings. Outstanding!
This plugin really works
Since we use this plugin the spam is really less than before. Great plugin!
More Phpmailer Worth Comparing
Top alternatives in the same category as SMTP Mailer and Stop WP Emails Going to Spam
Zoho Mail Plugin lets you configure your Zoho Mail account on your WordPress site enabling you to send the email via Zoho Mail API.
Send WordPress emails from a M365 / Exchange Online Mailbox using Microsoft Graph, leveraging OAuth for authentication which is more secure than SMTP
Configure SMTP mailing in WordPress, including support for sending email via SSL/TLS (such as Gmail).
Simple plugin that correctly sets the return-path header when using wp_mail. Mitigates the "via" and "The actual sender of" Notif …
Zoho ZeptoMail Plugin lets you configure your ZeptoMail account on your WordPress site enabling you to send transactional emails of your site via Zept …
A friendly SMTP plugin for WordPress. No third-party, simply using WordPress native possibilities.
Frequently Asked Questions
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.