WP Mail SMTP by WPForms – The Most… vs Mailster SendGrid Integration (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
WP Mail SMTP by WPForms – The Most…
4.0M+ active installs
Free
Mailster SendGrid Integration
1.0K+ active installs
Free
Quick Verdict
As of April 2026, Mailster SendGrid Integration has a higher user rating (5/5 from 1 reviews) while WP Mail SMTP by WPForms – The Most… leads in active installations (4.0M+ vs 1.0K+). Both are free WordPress plugins. WP Mail SMTP by WPForms – The Most… has accumulated 76M+ total downloads while Mailster SendGrid Integration has 26K+.
Detailed Comparison
| Metric | WP Mail SMTP by WPForms – The Most… | Mailster SendGrid Integration | |
|---|---|---|---|
| Rating | 4.8/5 | ► | 5/5 |
| Total Reviews | 5,089 | ◄ | 1 |
| Active Installs | 4.0M+ | ◄ | 1.0K+ |
| Total Downloads | 76M+ | ◄ | 26K+ |
| Support Resolution | 88% | N/A | |
| Last Updated | 4 months ago | ◄ | 1 year ago |
| First Released | 2007 | 2017 | |
| Age | 19 years | 9 years | |
| WP Requires | 5.5+ | 6.0+ | |
| PHP Requires | 7.4+ | false+ | |
| Business Model | Free | Free | |
| Latest Version | 4.7.1 | 2.1.1 |
Rating Breakdown
WP Mail SMTP by WPForms – The Most…
Mailster SendGrid Integration
Download Trends
Over the past 30 days, WP Mail SMTP by WPForms – The Most… averaged approximately 13,731 daily downloads while Mailster SendGrid Integration averaged 4.
Recent Reviews
WP Mail SMTP by WPForms – The Most… Reviews
Great plugin!
Easy to install and configure. Works like a charm!
Love it
easy and reliable
Does the Job, Needs Improvement
WP Mail SMTP by WPForms works well for email delivery, with easy setup. However, it lacks some advanced features and customization. 4 stars! This topic was modified 2 days, 1 hour ago by janel
Mailster SendGrid Integration Reviews
Works great!
I’ve switched do a different provider (Mailgun) meanwhile but this one works as promised. Thanks!
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Frequently Asked Questions
Is WP Mail SMTP by WPForms – The Most… or Mailster SendGrid Integration more popular?
Which has better ratings — WP Mail SMTP by WPForms – The Most… or Mailster SendGrid Integration?
Are WP Mail SMTP by WPForms – The Most… and Mailster SendGrid Integration free?
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.