FluentSMTP – WP Mail SMTP Plugin with Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, toSend, Gmail and Any SMTP v2.4.0
Free WP Mail SMTP plugin. Fix WordPress email deliverability with Gmail, Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, Brevo or any SMTP.
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- Audit coverage Not yet audited newest version pending
- On Plugin Auditor since Sep 1, 2026
- Last audited Sep 1, 2026
Compatibility & requirements
The PHP and WordPress versions this plugin needs, and how current its version support is.
- Requires PHP 7.4+
- Requires WordPress 5.5+
- Tested up to WP 7.0 WP 7.1.3 is current
Audit scores by category
125 checksHow this plugin scores across the six areas we audit, from security to accessibility.
- 104 Passed
- 17 Warnings
- 4 Failed
29 of 37 checks passed.
54 of 61 checks passed.
10 of 12 checks passed.
4 of 6 checks passed.
3 of 3 checks passed.
4 of 6 checks passed.
Code footprint
How much code ships in this plugin, and the file types that make it up.
ZIP file size
2.3 MB
7.2 MB unzipped
Total files
944
across all file types
Lines of PHP
25,445
in 154 files Large
File types
- PHP
- SVG
- OTHER
- JS
Top issues
The most important findings from the latest audit, ordered by severity.
- 0 Critical
- 38 High
- 90 Medium
- 26 Low
This is a preview of notable findings. Full file-level results, line numbers and code context are in the scan.
View full reportHow scores changed across versions
Across 29 audited versions of FluentSMTP – WP Mail SMTP Plugin with Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, toSend, Gmail and Any SMTP, Code Quality improved the most (+27). The largest regression was in Accessibility (-16). The codebase grew 104% in size.
Audited 1.0.1 → 2.3.0 · 29 versions
How issues changed across versions
Findings by severity for each audited version, so you can see which issues were fixed over time.
Download momentum
How fast this plugin is being installed lately, and whether that pace is rising or slowing.
Last 7 days
244,891
downloads
Today
10,689
downloads
Week over week
−3%
vs previous week
Month over month
+816%
vs previous month
Download trend: Growing. Abandonment risk: None.
Version intelligence
100% of installs run the current version
- Other
- v2.2
- v2.3
Maintenance & history
How actively this plugin is kept up, from its last update to its release history.
Last updated
This month
Aug 5, 2026
Actively maintainedRelease cadence
~ every 72 days
average between releases
Total releases
29
since Jan 2021 · 5 yrs
Contributors & developers
The people credited with building and maintaining this plugin.
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FluentSMTP and its trademarks are used only to identify the plugin analyzed and remain the property of their owners. This is an independent Plugin Auditor audit, not affiliated with, sponsored by, or endorsed by the plugin's developer. Metadata may come from WordPress.org; scores, findings, classifications, and visualizations are independently generated by Plugin Auditor. Full disclaimer.