FluentCRM
Self-hosted email marketing and CRM plugin by WPManageNinja: unlimited contacts, campaigns and automation funnels, sending through your own SMTP or ESP.
91
MC4WP: Mailchimp for WordPress
Connector by ibericode that adds Mailchimp sign-up forms and form-plugin integrations to WordPress; campaigns and sending stay in Mailchimp.
Free installs1M+WordPress.org, active
Est. Pro installs~49KLikely 25K–98K
Vendor claims2M+Vendor's own figure
Rating4.8/51,497 reviews
Price from$59/yrFreemium
Last updated16 Sep 2026Version 4.14.1
Overview
MC4WP: Mailchimp for WordPress, built by ibericode, is not a newsletter system in its own right. It connects WordPress to a Mailchimp account so you can collect subscribers on your site and send them straight into a Mailchimp audience. Newsletters, templates, automations, sending, bounce handling and reporting all happen inside Mailchimp, so what you can do there depends on your Mailchimp plan.
How it works
You paste in a Mailchimp API key, pick an audience and build a sign-up form with HTML-based fields that map to Mailchimp merge fields. Forms can be placed with a shortcode, a block, a widget or a PHP function, and each form can apply tags or interest groups. Double opt-in is on by default, with Mailchimp sending the confirmation email. The free plugin also adds sign-up checkboxes to many other forms: WordPress comments and registration, WooCommerce checkout, Contact Form 7, Gravity Forms, WPForms, Ninja Forms, BuddyPress, MemberPress, Easy Digital Downloads, Give, Ultimate Member and more.
Premium
MC4WP Premium (from $59 a year) adds unlimited forms with AJAX submission, a visual form styles builder, email notifications for each sign-up, a local log of sign-up attempts with CSV/JSON export, two-way user sync between WordPress profiles and Mailchimp, auto-appending forms to posts in chosen categories, and a button to turn a Gutenberg post into a Mailchimp campaign draft. Its e-commerce module sends WooCommerce orders, products and coupons to Mailchimp so you can see revenue per campaign and run Mailchimp’s abandoned cart and purchase-based automations.
Strengths
- Very quick setup for anyone already using Mailchimp.
- Wide range of free form-plugin integrations.
- Lightweight: it does not store or send email itself.
Limitations
Everything beyond list building depends on Mailchimp, whose pricing rises with contact count and whose free plan is small. There are no popups in the plugin itself, contacts do not live in WordPress, and you cannot switch sending provider.
Pick MC4WP if your newsletter already runs on Mailchimp and you simply need reliable WordPress forms and WooCommerce data feeding it.
Best for: Sites already sending with Mailchimp that need WordPress sign-up forms and WooCommerce data synced to it.
MC4WP does one job very well: getting WordPress visitors and customers into Mailchimp. It is not an alternative to MailPoet or FluentCRM, because every campaign, automation and report depends on your Mailchimp plan.
Pros
- Fast, reliable way to add Mailchimp sign-up forms to WordPress
- Free sign-up checkboxes for comments, registration, WooCommerce, CF7, Gravity Forms, WPForms and more
- Tags and interest groups can be applied per form
- Premium e-commerce sync enables Mailchimp revenue reports and abandoned cart
- Lightweight, with no local sending or contact storage
Cons
- Only works with Mailchimp; campaigns, automations and reports live there
- Costs grow with Mailchimp's contact-based pricing
- Free plugin is limited to a single form, with styling and AJAX in Premium
- No popup forms without a separate plugin
Key features
What MC4WP: Mailchimp for WordPress highlights on its WordPress.org page and its own website, split by version.
Free version WordPress.org
- Mailchimp sign-up form builder
- Shortcode, block and widget placement
- Double opt-in via Mailchimp
- Tags and interest groups per form
- Merge field mapping
- WordPress comment and registration checkboxes
- WooCommerce checkout sign-up
- Contact Form 7, Gravity Forms, WPForms integration
- BuddyPress, MemberPress, EDD, Give integration
- Agree-to-terms consent field
- Unsubscribe forms
- Developer hooks and PHP API
Pro / paid adds From $59/yr
- Unlimited sign-up forms
- AJAX form submission
- Visual form styles builder
- WooCommerce orders and products to Mailchimp
- Abandoned cart recovery in Mailchimp
- Coupon sync as Mailchimp promo codes
- Email notification per sign-up
- Sign-up logging with CSV/JSON export
- Two-way WordPress user sync
- Audience activity dashboard widget
- Auto-append forms by category
- Post to Mailchimp campaign button
Feature checklist
11 of 25 features we track in Email Marketing & Newsletters, feature score 42/100
Campaigns 0/5
Drag & drop email builder Key
Design newsletters visually without code.
Emails are designed in Mailchimp's editor; Premium can send a post to a campaign draft.
Third-party
Email templates
Ready-made newsletter and email templates.
Templates come from your Mailchimp account, not the plugin.
Third-party
New post notifications Key
Automatically email subscribers when you publish (RSS to email).
RSS-to-email runs in Mailchimp; Premium adds a post-to-campaign button in Gutenberg.
Third-party
Scheduled campaigns
Schedule newsletters for a set date and time.
Campaign scheduling is done in Mailchimp.
Third-party
A/B testing
Test subject lines or content variations.
Any A/B testing depends on your Mailchimp plan.
Third-party
Automation 2/4
Automation workflows Key
Welcome series, drip sequences and trigger-based emails.
Welcome series and journeys are built in Mailchimp; the plugin only feeds contacts.
Third-party
WooCommerce marketing emails Key
Abandoned cart, purchase follow-ups and customer segments from WooCommerce.
Premium e-commerce sync powers Mailchimp abandoned cart and purchase-based segments.
Paid version Single
Visual automation builder
Build workflows on a visual canvas with conditions and delays.
Workflow building happens in Mailchimp's journey builder.
Third-party
Membership & LMS triggers
Automations triggered by membership, course or form events.
MemberPress, Ultimate Member, BuddyPress sign-ups add subscribers; automations run in Mailchimp.
Partial
Subscribers & lists 6/7
Sign-up forms Key
Embedded, popup or slide-in subscription forms.
Embedded forms via shortcode, block, widget or PHP; popups need a separate plugin.
Included
Double opt-in
Confirmation emails before subscribers are added.
Double opt-in enabled by default; Mailchimp sends the confirmation email.
Included
Lists, tags & segments Key
Organise subscribers with lists, tags and dynamic segments.
Forms can apply tags and interest groups; real segmentation is done in Mailchimp.
Partial
Custom subscriber fields
Store extra data such as birthday or company.
Form fields map to Mailchimp merge fields; data is stored in Mailchimp.
Included
CRM contact profiles
Full contact timeline with emails, purchases and activity.
Contact history lives in Mailchimp; Premium e-commerce adds purchase data there.
Third-party
Import & export subscribers
CSV import/export or migration from other services.
Premium logs sign-ups with CSV/JSON export and syncs WP users; list import is in Mailchimp.
Partial
Unsubscribe & preference centre
Subscribers manage lists or unsubscribe themselves.
Unsubscribe forms in the plugin; full preference centre is Mailchimp's hosted page.
Partial
Sending & deliverability 0/5
Subscribers stored in WordPress Key
Contacts and campaigns live in your own WordPress database.
Contacts and campaigns live in Mailchimp, not in the WordPress database.
Not included
Send through your own SMTP or ESP
Use Amazon SES, SendGrid, Mailgun or your own SMTP to send.
Sending is always done by Mailchimp; you can't use your own SMTP or ESP.
Not included
Built-in sending service
Vendor-run sending service included or available.
Mailchimp sends confirmations and campaigns under your Mailchimp plan.
Third-party
Bounce handling
Detects bounced emails and cleans the list.
Bounces are handled by Mailchimp.
Third-party
No subscriber cap in the free version
Free plan has no low limit on subscribers or emails.
Plugin is unlimited, but contact limits and pricing come from your Mailchimp plan.
Not included
Reports & integrations 3/4
Open & click reports Key
Track opens, clicks and unsubscribes per campaign.
Campaign reports are in Mailchimp; Premium only shows audience activity and sign-up logs.
Third-party
Revenue tracking
Attributes WooCommerce or other sales to emails.
Premium sends WooCommerce orders to Mailchimp to show revenue per campaign.
Paid version Single
Form plugin integrations
Add subscribers from WPForms, Gravity Forms, Fluent Forms and similar.
Free integrations with CF7, Gravity Forms, WPForms, Ninja Forms, WooCommerce and more.
Included
GDPR consent tools
Consent checkboxes, consent records and data export/erase.
Agree-to-terms field and double opt-in; no local consent records or data export tools.
Partial
Pricing
Free
$0On WordPress.org
Free
Freeper yearUnlimited
Free on WordPress.org; one sign-up form plus integrations. Requires a Mailchimp account (separate pricing).
Single
$59per year1 site
All Premium features and priority support; prices exclude tax.
Multi
$99per year5 sites
All Premium features on up to 5 sites.
Agency
$249per year25 sites
All Premium features on up to 25 sites.
Prices are list prices from the vendor's site, checked 14 Oct 2026. Many vendors discount the first year.
How many sites use MC4WP: Mailchimp for WordPress?
Free installs from WordPress.org, the vendor's own claim, and our estimate of paid installs.
Free version (WordPress.org)
1M+
Active installations reported by WordPress.org.
Vendor claim
2M+
Sites/users claimed on the vendor's website. source
Estimated Pro / paid installs
~49K
Our estimate, see method below.
How we estimated this: WordPress.org shows 1M+ free installs, which could mean anything from 1M to 2M. The vendor says 2M+ sites, so we put the free count halfway between the middle of that range and the vendor figure, at about 1.8M. About 1.8M free installs x 2.8% (the usual share of free sites that also run the paid version when most features are free, lower for very large free bases) gives 49K. Likely range: 25K to 98K. This counts sites running the paid version, including sites whose licence has lapsed. Estimates are rough and based on public figures as of 14 Oct 2026.
Stats & health
Weekly downloads
46,089 downloads last week, 78.6M all time
Rating breakdown
| Version | 4.14.1 |
|---|---|
| Last updated | 16 Sep 2026 (48 days ago) |
| Tested up to | WordPress 7.1.4 |
| Requires | WordPress 5.3+, PHP 7.4+ |
| Support threads (2 months) | 1 of 2 resolved |
| On WordPress.org since | 19 Jun 2013 |
Company & policy
| Refund policy | 30-day money-back (source, 11 Oct 2026) |
|---|
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FAQ
Is MC4WP: Mailchimp for WordPress free?
Yes. MC4WP: Mailchimp for WordPress has a free version on WordPress.org. Paid plans start at $59/yr.
How many sites use MC4WP: Mailchimp for WordPress?
WordPress.org reports 1M+ active installations of the free version. The vendor claims 2M+ sites in total. We estimate around 49K sites run the paid version.
Does MC4WP: Mailchimp for WordPress have drag & drop email builder?
No: third-party. Emails are designed in Mailchimp's editor; Premium can send a post to a campaign draft.
Does MC4WP: Mailchimp for WordPress have new post notifications?
No: third-party. RSS-to-email runs in Mailchimp; Premium adds a post-to-campaign button in Gutenberg.
Does MC4WP: Mailchimp for WordPress have automation workflows?
No: third-party. Welcome series and journeys are built in Mailchimp; the plugin only feeds contacts.
Does MC4WP: Mailchimp for WordPress have woocommerce marketing emails?
Yes: paid version (Single). Premium e-commerce sync powers Mailchimp abandoned cart and purchase-based segments.
Does MC4WP: Mailchimp for WordPress have sign-up forms?
Yes: included. Embedded forms via shortcode, block, widget or PHP; popups need a separate plugin.
Does MC4WP: Mailchimp for WordPress have lists, tags & segments?
Yes: partial. Forms can apply tags and interest groups; real segmentation is done in Mailchimp.
Does MC4WP: Mailchimp for WordPress have subscribers stored in wordpress?
No: not included. Contacts and campaigns live in Mailchimp, not in the WordPress database.
Does MC4WP: Mailchimp for WordPress have open & click reports?
No: third-party. Campaign reports are in Mailchimp; Premium only shows audience activity and sign-up logs.
Does MC4WP send newsletters?
No. It collects subscribers and syncs data to Mailchimp. You design, send and report on campaigns inside your Mailchimp account.
Do I need a paid Mailchimp plan?
Not to use the plugin, but Mailchimp's own plan limits (contacts, automations, sends) apply to everything after sign-up.
What does Premium add?
Multiple AJAX forms, a styles builder, sign-up logging and notifications, user sync and WooCommerce e-commerce sync for revenue tracking and abandoned cart emails in Mailchimp.
Does it work with my form plugin?
The free plugin integrates with Contact Form 7, Gravity Forms, WPForms, Ninja Forms, WooCommerce checkout, comments, registration, BuddyPress, MemberPress and others.
Last updated 11 Oct 2026. Spotted something wrong? Suggest an edit.