Post SMTP – Complete Email… vs Mailchimp for WooCommerce (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Post SMTP – Complete Email…
400K+ active installs
Free + Premium
Mailchimp for WooCommerce
200K+ active installs
Free
Quick Verdict
As of April 2026, Post SMTP – Complete Email… has a higher user rating (4.7/5 from 518 reviews) and leads in active installations (400K+ vs 200K+). Both are free + premium WordPress plugins. Post SMTP – Complete Email… has accumulated 18M+ total downloads while Mailchimp for WooCommerce has 23M+. Post SMTP – Complete Email… has a higher support resolution rate (76% vs 43%).
Detailed Comparison
| Metric | Post SMTP – Complete Email… | Mailchimp for WooCommerce | |
|---|---|---|---|
| Rating | 4.7/5 | ◄ | 4/5 |
| Total Reviews | 518 | ► | 726 |
| Active Installs | 400K+ | ◄ | 200K+ |
| Total Downloads | 18M+ | ► | 23M+ |
| Support Resolution | 76% | ◄ | 43% |
| Last Updated | 4 days ago | ◄ | 1 week ago |
| First Released | 2017 | 2016 | |
| Age | 9 years | 10 years | |
| WP Requires | 5.6.0+ | 6.2+ | |
| PHP Requires | 7.0+ | 7.4+ | |
| Business Model | Free + Premium | Free | |
| Latest Version | 3.9.1 | 6.0.2 |
Rating Breakdown
Post SMTP – Complete Email…
Mailchimp for WooCommerce
Download Trends
Over the past 30 days, Post SMTP – Complete Email… averaged approximately 11,652 daily downloads while Mailchimp for WooCommerce averaged 12,423.
Recent Reviews
Post SMTP – Complete Email… Reviews
Critical and high severity vulnerabilities over and over again
We’ve been using Post SMTP for years. Initially, we started with WP Mail SMTP, but the free version didn’t include logging, while Post SMTP did, and that occasionally came in handy. So we switched to
Great Plugin
Great Plugin easy to config and troubleshoot.
Great Support for the setup of PostSMTP
Aqib was very helpful in setting up PostSMTP on my site. The plug-in is working very well.
Mailchimp for WooCommerce Reviews
doesn’t work and support can’t fix it
Doesn’t work (ie the subscribe on check out doesn’t actually add people to my mailchimp audience even if customer has the box ticked) and mailchimp support doesn’t seem to be able to help. Seems mailc
Not good value for money
From 500 to 250 Contacts. Deinstallation. No way.
constant banner error
I have a banner in my admin pages stating I’m not connected to a Mailchimp account. Yet when I click the link, takes me right to my dashbaord.
More Plugins Worth Comparing
Top alternatives in the same category as Post SMTP – Complete Email… and Mailchimp for WooCommerce
Make email delivery easy for WordPress. Connect with SMTP, Gmail, Outlook, SendGrid, Mailgun, SES, Zoho, + more. Rated #1 WordPress SMTP Email plugin.
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.
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 …
Effortlessly manage transactional emails with Site Mailer. High deliverability, logs and statistics, and no SMTP plugins needed.
Frequently Asked Questions
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.