Create Email Template in Django website

Need to create an email template which let's site staff send the same email template to different users through a django model form . The django form should contain following fields: origin (charfield) dest (charfield) Text (textfield) serial number (charfield) useremail (to be selected from site users) The first 3 fields should be the parte of the email in common for all email receivers, while the serial number field should be different for any addresse (possibily additional new rows of this part should be added through a javascript button.) I am open to receieve proposal for installation of 3rd parties libraries for email tamplate purposes).