Developed By SupportMonk

Compatible with WHMCS v7.6

ezchimp is a WHMCS addon module which integrates with Mailchimp for newsletters and mailing lists for your clients in WHMCS. Clients can subscribe/unsubscribe to your newsletters or mailing lists and interest groups in Mailchimp during signup or via their client area. Auto updates subscription when clients change their email address or add contact / sub-account. Auto-subscribe customers purchasing products in specific product groups to corresponding mailing list and interest group. Subscribe affiliate to selected lists on activation. Supports subscribe/unsubscribe, multiple mailing lists and interest groups, multi-language.


  1. Download and extract the ezchimp.zip file into your modules/addons/ folder within your WHMCS directory.

  2. Move the ezchimp_webhook.php file to your WHMCS root directory (eg: /home/username/public_html/whmcs). Test and make sure http://yourdomain.com/whmcs/ezchimp_webhook.php is giving a blank page instead of any errors such as internal server error (500). If it does, check and fix the ownership (should be owned by the domain’s username on a cpanel server for example), permission (try 555) etc so that it works.

  3. Go to WHMCS admin -> Setup -> Addon Modules and “activate” the module listed as “MailChimp newsletter”

  4. Set the WHMCS base URL (eg: http://yourdomain.com/whmcs, since version 1.6 only).

  5. After successful activation enter you MailChimp API key, set access control below in the same page.

  6. Go to “Addons” -> “MailChimp newsletter” and configure the settings as necessary.

  7. Click on “Lists & Groups” in right menu to display all mailing lists and interest groups in your Mailchimp account.

  8. Enable those you need to make available to your clients in WHMCS. Give an alias as you wish. If an alias is not specified, the name of the interest group (or the name of the list if there are no interest groups in it) will be used.

  9. The “Status” link in side menu will display the subscription status of your clients and their sub-contacts to mailing lists and interest groups.

  10. Use the “Tools” link to initially subscribe existing clients after a fresh activation of ezchimp module.

See the full documentation with screenshots here: http://blog.supportmonk.com/whmcs-addon-modules/ezchimp-whmcs-mailchimp-integration


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Version Compatibility

Compatible with WHMCS v7.6

Full Version Compatibility

  • All versions of WHMCS v7.6
  • All versions of WHMCS v7.5
  • All versions of WHMCS v7.4
  • Selected versions of WHMCS v7.3
  • All versions of WHMCS v7.2
  • All versions of WHMCS v7.1
  • All versions of WHMCS v7.0

System Requirements

  • WHMCS 7.x

* Requirements listed are in addition to the WHMCS default system requirements.

Support for this product

The best place to start if you need help with a specific product is to contact the developer. All WHMCS Marketplace developers have both a website and support URL listed.

Developed By SupportMonk


v3.1 Released December 28th, 2018

Latest Version

3.1 - 28 Dec 2018: Fix sending firstname and lastname to Mailchimp. 3.0 - 27 Aug 2018: Update MailChimp API to version 3.0. German language translation. 2.7 - 19 Aug 2017: Fix a bug in auto-subscribe by product groups. 2.6 - 21 Jun 2017: New tool to subscribe inactive clients as well. 2.5 - 19 Jun 2017: Tools to subscribe only the clients who have not opted out of marketing emails. 2.4 - 21 Mar 2017: Subscribe affiliate to selected lists on activation. 2.3 - 17 Mar 2017: Fix interest group subscriptions within the same list. 2.2 - 01 Mar 2017: Do not un-subscribe from lists that aren't enabled. 2.1 - 15 Feb 2017: Fix auto subscribe settings. 2.0 - 30 Dec 2016: Use Capsule based database interaction to support WHMCS 7.x with PHP 7.x 1.22 - Fix interest group subscriptions within the same list. 1.21 - Do not un-subscribe from lists that aren't enabled. 1.20 - 16 Nov 2016: Fix issue with default subscription when adding client. 1.19 - 17 Aug 2016: New tool to subscribe existing clients with an active hosting account who are not already subscribed to any list/group to all active lists/groups. 1.18 - 24 Dec 2014: Improve debug messages when listing existing subscriptions 1.17 - 05 Aug 2014: Tool to reset subscriptions as per auto-subscribe settings 1.16 - 27 Mar 2014: Remove global variables to improve security


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