The inbuilt WHMCS mass mailing tool is one way to keep in contact with customers but its functionality and template design are simple and basic when compared to the rich features of the MailChimp bulk emailing platform.
The Modulized MailChimp addon enables WHMCS users to integrate WHMCS with Mailchimp so they can take advantage of the enhanced mailing capabilities and analytics of a professional bulk email system.
Automatically add clients to MailChimp mailing lists.
Automatically deletes clients from Mailchimp when deleted in WHMCS.
Editing details in WHMCS will modify the details in all associated MailChimp mailing lists.