SMTP Mailer vs MailerSend – Official SMTP Integration (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
MailerSend – Official SMTP Integration
2.0K+ active installs
Free
Quick Verdict
As of April 2026, SMTP Mailer has a higher user rating (4.5/5 from 65 reviews) and leads in active installations (70K+ vs 2.0K+). Both are free WordPress plugins. SMTP Mailer has accumulated 1.4M+ total downloads while MailerSend – Official SMTP Integration has 21K+.
Detailed Comparison
| Metric | SMTP Mailer | MailerSend – Official SMTP Integration | |
|---|---|---|---|
| Rating | 4.5/5 | ◄ | 2.8/5 |
| Total Reviews | 65 | ◄ | 12 |
| Active Installs | 70K+ | ◄ | 2.0K+ |
| Total Downloads | 1.4M+ | ◄ | 21K+ |
| Support Resolution | N/A | N/A | |
| Last Updated | 1 month ago | ◄ | 2 months ago |
| First Released | 2015 | 2021 | |
| Age | 11 years | 5 years | |
| WP Requires | 6.9+ | 5.7+ | |
| PHP Requires | false+ | 7.2.5+ | |
| Business Model | Free | Free | |
| Latest Version | 1.1.25 | 1.0.5 |
Rating Breakdown
SMTP Mailer
MailerSend – Official SMTP Integration
Download Trends
Over the past 30 days, SMTP Mailer averaged approximately 449 daily downloads while MailerSend – Official SMTP Integration averaged 17.
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
MailerSend – Official SMTP Integration Reviews
Doesn’t work
All set up but nothing arrives except the test email. This topic was modified 1 month, 2 weeks ago by primerpizza.
3 templates for plan free
3 templates for plan free is a Joke..
Plugin Ok, company not
As far as I could see, the plugin seems to work Ok, it’s a shame I can’t say the same for the ‘practices’ of the company.
More Phpmailer Worth Comparing
Top alternatives in the same category as SMTP Mailer and MailerSend – Official SMTP Integration
Zoho Mail Plugin lets you configure your Zoho Mail account on your WordPress site enabling you to send the email via Zoho Mail API.
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Fixes WordPress emails going to spam/junk folders. The default settings often resolve the issue.
Configure SMTP mailing in WordPress, including support for sending email via SSL/TLS (such as Gmail).
Zoho ZeptoMail Plugin lets you configure your ZeptoMail account on your WordPress site enabling you to send transactional emails of your site via Zept …
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Frequently Asked Questions
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.