Using Mandrill headers with Django's email framework

gistfile1.py

from django.core.mail import EmailMessage

email = EmailMessage(
  # subject='', 
  # body='', 
  from_email='[email protected]',
  to=['[email protected]', '[email protected]'], 
  bcc=['[email protected]'], 
  headers={
    'X-MC-Template': 'template-slug', 
    'X-MC-MergeVars': '{"companyname": "Aaron\'s little email company", "INVOICETOTAL": "$59.99"}'
    }
  )

email.send()