3.4.8. Emails
To edit the subject and contents for emails, for example password recovery email, add a message bundle to the email type of your theme. There are three messages for each email. One for the subject, one for the plain text body and one for the html body.
To see all emails available take a look at themes/base/email/messages/messages_en.properties.
For example to change the password recovery email for the mytheme theme create themes/mytheme/email/messages/messages_en.properties with the following content:
passwordResetSubject=My password recovery
passwordResetBody=Reset password link: {0}
passwordResetBodyHtml=<a href="{0}">Reset password</a>
passwordResetSubject=My password recovery
passwordResetBody=Reset password link: {0}
passwordResetBodyHtml=<a href="{0}">Reset password</a>