Using Mandrill headers with Django's email framework

gistfile1.py

from django.core.mail import EmailMessage

email = EmailMessage(
  # subject='', 
  # body='', 
  from_email='from@example.com',
  to=['to+1@example.com', 'to+2@example.com'], 
  bcc=['bcc@example.com'], 
  headers={
    'X-MC-Template': 'template-slug', 
    'X-MC-MergeVars': '{"companyname": "Aaron\'s little email company", "INVOICETOTAL": "$59.99"}'
    }
  )

email.send()