"""sendmail email backend class.""" import threading from django.conf import settings from django.core.mail.backends.base import BaseEmailBackend from subprocess import Popen,PIPE class EmailBackend(BaseEmailBackend): def __init__(self, fail_silently=False, **kwargs): super(EmailBackend, self).__init__(fail_silently=fail_silently) self._lock = threading.RLock() def open(self): return True def close(self): pass def send_messages(self, email_messages): """ Sends one or more EmailMessage objects and returns the number of email messages sent. """ if not email_messages: return self._lock.acquire() try: num_sent = 0 for message in email_messages: sent = self._send(message) if sent: num_sent += 1 finally: self._lock.release() return num_sent def _send(self, email_message): """A helper method that does the actual sending.""" if not email_message.recipients(): return False try: ps = Popen(["sendmail"]+list(email_message.recipients()), \ stdin=PIPE) ps.stdin.write(email_message.message().as_string()) ps.stdin.flush() ps.stdin.close() return not ps.wait() except: if not self.fail_silently: raise return False return True