Site Mailer – SMTP Replacement, Email… vs Simple SMTP (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Site Mailer – SMTP Replacement, Email…
200K+ active installs
Free
Quick Verdict
As of April 2026, Simple SMTP has a higher user rating (5/5 from 11 reviews) while Site Mailer – SMTP Replacement, Email… leads in active installations (200K+ vs 2.0K+). Both are free WordPress plugins. Site Mailer – SMTP Replacement, Email… has accumulated 1.8M+ total downloads while Simple SMTP has 31K+.
Detailed Comparison
| Metric | Site Mailer – SMTP Replacement, Email… | Simple SMTP | |
|---|---|---|---|
| Rating | 2.2/5 | ► | 5/5 |
| Total Reviews | 14 | ◄ | 11 |
| Active Installs | 200K+ | ◄ | 2.0K+ |
| Total Downloads | 1.8M+ | ◄ | 31K+ |
| Support Resolution | 100% | N/A | |
| Last Updated | 1 month ago | ◄ | 7 months ago |
| First Released | 2024 | 2020 | |
| Age | 2 years | 6 years | |
| WP Requires | 6.6+ | 5.0+ | |
| PHP Requires | 7.4+ | 7.0+ | |
| Business Model | Free | Free | |
| Latest Version | 1.4.3 | 1.3.4.1 |
Rating Breakdown
Site Mailer – SMTP Replacement, Email…
Simple SMTP
Download Trends
Over the past 30 days, Site Mailer – SMTP Replacement, Email… averaged approximately 2,033 daily downloads while Simple SMTP averaged 27.
Recent Reviews
Site Mailer – SMTP Replacement, Email… Reviews
Site Mailer Glitch
I’ve been using Site Mailer for a while now. But I installed it for a new client and the plugin is not working. “Sorry there was a glitch. Try refreshing the page. if that does not resolve the issue t
it forces you to set a Reply-To address
I’m unfortunately not satisfied with Site Mailer because it forces you to set a Reply-To address in the plugin settings. There is no option to leave this field empty. For websites that use advanced
Installed without my consent
This plugin suddenly appeared on my site without me ever installing it. I can only assume it was pushed through an Elementor update, which is completely unacceptable behavior. Plugins should never
Simple SMTP Reviews
Clean, No Ads！！！
Perfectly and elegantly meets my needs, the best STMP plugin I’ve used so far.
Perfect for local Email solution
The Simple SMTP plugin truly lives up to its name, offering a straightforward and effective solution for managing email communications, especially when paired with MailPit. I’ve been using it locally
Simple and effective
Thank you for developing this module, it works great and currently it doesn’t include many other things that could bloat the site.
More Sender Worth Comparing
Top alternatives in the same category as Site Mailer – SMTP Replacement, Email… and Simple SMTP
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WP Simple Mail Sender is a very simple plugin to change the sender address and name in outgoing emails.
Frequently Asked Questions
Is Site Mailer – SMTP Replacement, Email… or Simple SMTP more popular?
Which has better ratings — Site Mailer – SMTP Replacement, Email… or Simple SMTP?
Are Site Mailer – SMTP Replacement, Email… and Simple SMTP free?
Which plugin has better support — Site Mailer – SMTP Replacement, Email… or Simple SMTP?
Which plugin is updated more frequently?
Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.