Enable setting up headers for emails

.gitignore

@@ -12,4 +12,5 @@ coverage.xml
 .coverage
 __pycache__
 .DS_Store
-*.sqlite*
+*.sqlite*
+.vscode/

django_ses_plus/models.py

@@ -37,7 +37,7 @@ class SendEmailMixin(object):
     def get_to_email(self):
         return self.email
 
-    def send_email(self, subject, template_path, context, from_email=None, language=None):
+    def send_email(self, subject, template_path, context, from_email=None, language=None, headers=None):
         from .tasks import send_email
         if not DJANGO_SES_PLUS_SETTINGS["SEND_EMAIL"]:
             return _("Email cannot be sent due to SEND_EMAIL flag in project settings.")
@@ -56,7 +56,8 @@ def send_email(self, subject, template_path, context, from_email=None, language=
             to_email=self.get_to_email(),
             html_message=html_message,
             from_email=from_email,
-            recipient_id=recipient_id
+            recipient_id=recipient_id,
+            headers=headers
         )
 
         if language:

django_ses_plus/tasks.py

@@ -5,28 +5,29 @@
 from django_ses_plus import logger
 from .settings import DJANGO_SES_PLUS_SETTINGS
 from django.core.files.base import ContentFile
-from django.core.mail import send_mail
+from django.core.mail import EmailMultiAlternatives
 from django.utils.translation import ugettext_lazy as _
 
 from .models import SentEmail
 
 
 @shared_task(retry_kwargs=DJANGO_SES_PLUS_SETTINGS["CELERY_TASK_RETRY_KWARGS"])
-def send_email(subject, to_email, html_message, from_email=None, message=None, recipient_id=None):
+def send_email(subject, to_email, html_message, from_email=None, message=None, recipient_id=None, headers=None):
     if not DJANGO_SES_PLUS_SETTINGS["SEND_EMAIL"]:
         return _("Email cannot be sent due to SEND_EMAIL flag in project settings.")
 
     if not from_email:
         from_email = DJANGO_SES_PLUS_SETTINGS["DEFAULT_FROM_EMAIL"]
 
-    send_mail(
+    email = EmailMultiAlternatives(
         subject=subject,
-        message=message,
-        html_message=html_message,
+        body=message,
         from_email=from_email,
-        recipient_list=[to_email],
-        fail_silently=False,
+        to=[to_email],
+        headers=headers
     )
+    email.attach_alternative(html_message, 'text/html')
+    email.send()
 
     try:
         SentEmail.objects.create(