Добавил логирование для отправщика емейлов.

emencia/django/newsletter/mailer.py

@@ -14,6 +14,8 @@ from datetime import timedelta
 from smtplib import SMTPRecipientsRefused
 from pymorphy2 import MorphAnalyzer
 morph = MorphAnalyzer()
+from logging import getLogger
+log = getLogger('mail')
 
 try:
     from email.mime.multipart import MIMEMultipart
@@ -471,8 +473,8 @@ class Mailer(NewsLetterSender):
             announce_context = contact.get_announce_context() if self.announce else None
             if self.announce and not announce_context:
                 send = False
-
             try:
+                log.info('Trying send to {email}'.format(email=contact.email))
                 # pass
                 if send:
                     message = self.build_message(contact, announce_context)
@@ -481,6 +483,8 @@ class Mailer(NewsLetterSender):
                                            message.as_string())
             except (Exception, ) as e:
                 exception = e
+                log.info('Exception was raised while sending to {email}: {exception}'.format(
+                    email=contact.email, exception=exception))
             else:
                 exception = None
                 self.update_ab_state()

support/dev/settings.py

@@ -548,5 +548,36 @@ if DEBUG:
 ]
 
 
-
-
+# logging
+U_LOGFILE_SIZE = 1 * 1024 * 1024
+U_LOGFILE_COUNT = 2
+DEFAULT_LOGGER_NAME = 'mail'
+LOGGING = {
+    'version': 1,
+    'disable_existing_loggers': False,
+    'formatters': {
+        'verbose': {
+            'format': '%(levelname)s %(asctime)s %(module)s %(process)d %(thread)d %(message)s \n'
+        },
+        'simple': {
+            'format': '%(levelname)s %(message)s'
+        },
+    },
+    'handlers': {
+        'file': {
+            'level': 'INFO',
+            'filename':  os.path.join(SITE_ROOT, 'logs/django.log'),
+            'formatter': 'verbose',
+            'class':'logging.handlers.RotatingFileHandler',
+            'maxBytes': U_LOGFILE_SIZE,
+            'backupCount': U_LOGFILE_COUNT,
+        },
+    },
+    'loggers': {
+        'mail': {
+            'handlers': ['file'],
+            'propagate': True,
+            'level': 'DEBUG',
+        },
+    }
+}