WP Mail SMTP by WPForms – The Most… vs ActiveCampaign Postmark for WordPress (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
ActiveCampaign Postmark for WordPress
50K+ active installs
Free
Quick Verdict
As of April 2026, WP Mail SMTP by WPForms – The Most… has a higher user rating (4.8/5 from 5,089 reviews) and leads in active installations (4.0M+ vs 50K+). Both are free WordPress plugins. WP Mail SMTP by WPForms – The Most… has accumulated 76M+ total downloads while ActiveCampaign Postmark for WordPress has 763K+. WP Mail SMTP by WPForms – The Most… has a higher support resolution rate (88% vs 0%).
Detailed Comparison
| Metric | WP Mail SMTP by WPForms – The Most… | ActiveCampaign Postmark for WordPress | |
|---|---|---|---|
| Rating | 4.8/5 | ◄ | 4.7/5 |
| Total Reviews | 5,089 | ◄ | 30 |
| Active Installs | 4.0M+ | ◄ | 50K+ |
| Total Downloads | 76M+ | ◄ | 763K+ |
| Support Resolution | 88% | ◄ | 0% |
| Last Updated | 4 months ago | ◄ | 1 year ago |
| First Released | 2007 | 2011 | |
| Age | 19 years | 15 years | |
| WP Requires | 5.5+ | 5.3+ | |
| PHP Requires | 7.4+ | 7.0+ | |
| Business Model | Free | Free | |
| Latest Version | 4.7.1 | 1.19.1 |
Rating Breakdown
WP Mail SMTP by WPForms – The Most…
ActiveCampaign Postmark for WordPress
Download Trends
Over the past 30 days, WP Mail SMTP by WPForms – The Most… averaged approximately 14,159 daily downloads while ActiveCampaign Postmark for WordPress averaged 111.
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
ActiveCampaign Postmark for WordPress Reviews
Great plugin, no issues ever
This is extremely reliable, just like Postmark.
Stable and reliable
I switched to using Postmark for a few of my websites email delivery over a year ago, and have not had any issues since. Super reliable, and good support too!
Must have email plugin
Postmark (both the service and this plugin) has resolved and prevented so many headaches. It is an absolute time saver. The customer service is fast, responsive, and helpful. I’ve tried the others—Pos
More Plugins Worth Comparing
Top alternatives in the same category as WP Mail SMTP by WPForms – The Most… and ActiveCampaign Postmark for WordPress
The #1 Mailchimp plugin for WordPress. Allows you to add a multitude of newsletter sign-up methods to your site.
Make SMTP email sending and delivery easy. Configure Gmail, Outlook, Brevo, SendGrid, Mailgun, SendLayer or connect to any SMTP server.
Improve WordPress email deliverability. Connect Gmail SMTP, Microsoft 365, Brevo, SendGrid, Mailgun, Zoho, Amazon SES, etc. #1 WordPress SMTP Plugin.
Log, view, and resend all emails sent from your WordPress site. Great for resolving email sending issues or keeping a copy for auditing.
Creative Mail was designed specifically for WordPress and WooCommerce. Our intelligent (and super fun) email editor simplifies email marketing campaig …
SureMail – SMTP and Email Logs Plugin with Amazon SES, Postmark, and Other Providers
Frequently Asked Questions
Is WP Mail SMTP by WPForms – The Most… or ActiveCampaign Postmark for WordPress more popular?
Which has better ratings — WP Mail SMTP by WPForms – The Most… or ActiveCampaign Postmark for WordPress?
Are WP Mail SMTP by WPForms – The Most… and ActiveCampaign Postmark for WordPress free?
Which plugin has better support — WP Mail SMTP by WPForms – The Most… or ActiveCampaign Postmark for WordPress?
Which plugin is updated more frequently?
Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.