old_contents: from email.mime.image import MIMEImage
  
  from django.contrib.staticfiles import finders
  from .base import EmailBase
  
  
  class PlatformEmailMixin:
      """
      Attaches the static file images/logo.png so it can be used in an html
      email.
      """
      def get_attachments(self):
          attachments = super().get_attachments()
          filename = finders.find('images/email_logo.png')
          if filename:
              f = open(filename, 'rb')
              logo = MIMEImage(f.read())
              logo.add_header('Content-ID', '<{}>'.format('logo'))
              return attachments + [logo]
          return attachments
  
  
  class SyncEmailMixin(EmailBase):
      """Send Emails synchronously."""
  
      @classmethod
      def send(cls, object, *args, **kwargs):
          """Call dispatch immediately"""
          return cls().dispatch(object, *args, **kwargs)
  
new_contents: from email.mime.image import MIMEImage
  
  from django.contrib.staticfiles import finders
  from .base import EmailBase
  
  
  class PlatformEmailMixin:
      """
      Attaches the static file images/logo.png so it can be used in an html
      email.
      """
      def get_attachments(self):
          attachments = super().get_attachments()
          filename = (
              finders.find('images/email_logo.png')
              or finders.find('images/email_logo.svg')
          )
          if filename:
              f = open(filename, 'rb')
              logo = MIMEImage(f.read())
              logo.add_header('Content-ID', '<{}>'.format('logo'))
              return attachments + [logo]
          return attachments
  
  
  class SyncEmailMixin(EmailBase):
      """Send Emails synchronously."""
  
      @classmethod
      def send(cls, object, *args, **kwargs):
          """Call dispatch immediately"""
          return cls().dispatch(object, *args, **kwargs)
  
subject: Allow svg as email logo attachment