Flamingo vs SDK WP SMTP (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Quick Verdict
As of April 2026, SDK WP SMTP has a higher user rating (5/5 from 1 reviews) while Flamingo leads in active installations (800K+ vs 10). Both are free WordPress plugins. Flamingo has accumulated 8.2M+ total downloads while SDK WP SMTP has 1.1K+.
Detailed Comparison
| Metric | Flamingo | SDK WP SMTP | |
|---|---|---|---|
| Rating | 4.2/5 | ► | 5/5 |
| Total Reviews | 118 | ◄ | 1 |
| Active Installs | 800K+ | ◄ | 10 |
| Total Downloads | 8.2M+ | ◄ | 1.1K+ |
| Support Resolution | 33% | N/A | |
| Last Updated | 4 months ago | ◄ | 7 years ago |
| First Released | 2012 | 2018 | |
| Age | 14 years | 8 years | |
| WP Requires | 6.7+ | 2.7+ | |
| PHP Requires | 7.4+ | false+ | |
| Business Model | Free | Free | |
| Latest Version | 2.6.1 | 1.0.4 |
Rating Breakdown
Flamingo
SDK WP SMTP
Download Trends
Recent Reviews
Flamingo Reviews
Works Really Well
Its a great addition to contact form 7 and much needed if you don’t have your email server setup yet.
Only works with PHP sendmail, not external SMTP
This plugin only works with contact forms using PHP mail. It doesn’t seem to work with an external SMTP mail server. I tested it out and there were no messages collected in DB. Also there’s no option
Great! (But has a minor bug)
This is a great tool, especially with its integration into the Contact Form 7 plugin. However, there’s a minor bug when exporting non-Latin characters, such as Persian. It seems the encoding is set to
SDK WP SMTP Reviews
No reviews yet
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Frequently Asked Questions
Is Flamingo or SDK WP SMTP more popular?
Which has better ratings — Flamingo or SDK WP SMTP?
Are Flamingo and SDK WP SMTP free?
Which plugin has better support — Flamingo or SDK WP SMTP?
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.