WPML MailChimp for WordPress Multilingual Addon This ‘glue’ plugin makes it easier to translate with WPML content provided in MailChimp for WordPress plugin.
nMailchimp is a popular online service that allows you to distribute automated email campaigns. The integration between Mailchimp for WordPress (MC4WP) plugin and WPML allows you to translate sign-up forms and related messages.
nYou need the main WPML Multilingual CMS WordPress Plugin. or you can get all WPML plugin + addons from here (WPML Plugin and all Addons Bundle) with low price.