#24575: Add an option to smtp.EmailBackend for DKIM signing
-------------------------------+--------------------
     Reporter:  gannetson      |      Owner:  nobody
         Type:  Uncategorized  |     Status:  new
    Component:  Core (Mail)    |    Version:  master
     Severity:  Normal         |   Keywords:
 Triage Stage:  Unreviewed     |  Has patch:  0
Easy pickings:  0              |      UI/UX:  0
-------------------------------+--------------------
 DKIM signing of emails is sensible to avoid being regarded as spam.
 Here's a example of an `EmailBackend` that does the signing, although I
 think it makes sense to add it as an option to
 `core.mail.backends.smtp.EmailBackend`.

 {{{
 class DKIMBackend(EmailBackend):
     def _send(self, email_message):
         """A helper method that does the actual sending + DKIM signing."""
         if not email_message.recipients():
             return False
         try:
             message_string = email_message.message().as_string()
             signature = dkim.sign(message_string,
                                   settings.DKIM_SELECTOR,
                                   settings.DKIM_DOMAIN,
                                   settings.DKIM_PRIVATE_KEY)
             self.connection.sendmail(email_message.from_email,
 email_message.recipients(), signature+message_string)
         except:
             if not self.fail_silently:
                 raise
             return False
         return True
 }}}

--
Ticket URL: <https://code.djangoproject.com/ticket/24575>
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