Email Templates:

Lets you design complete email templates related to any modules (Sale Orders, Invoices and so on), including sender, recipient, subject, body (HTML and Text). You may also automatically attach files to your templates, or print and attach a report. For advanced use, the templates may include dynamic attributes of the document they are related to. For example, you may use the name of a Partner's country when writing to them, also providing a safe default in case the attribute is not defined. Each template contains a built-in assistant to help with the inclusion of these dynamic values.