The Mail Editor module lets you edit the bodies and subjects of all emails that go out from your site to your users through Drupal's drupal_mail() function. You are able to edit any email body text based on which email it is and which language it is being sent for. You may use token variables in your templates to better customize dynamic email text. Mail Editor has special support built-in for the User core module and the LoginToboggan module. Enable the Locale core module to activate non-English and even multi-lingual email template translation.