diff --git a/colab/accounts/utils/mailman.py b/colab/accounts/utils/mailman.py
index 07fe7ac..998c25e 100644
--- a/colab/accounts/utils/mailman.py
+++ b/colab/accounts/utils/mailman.py
@@ -7,6 +7,8 @@ from django.conf import settings
 
 TIMEOUT = 1
 
+LOGGER = logging.getLogger('colab.mailman')
+
 
 def get_url(listname=None):
     if listname:
@@ -20,7 +22,7 @@ def subscribe(listname, address):
     try:
         requests.put(url, timeout=TIMEOUT, data={'address': address})
     except:
-        logging.exception('Unable to subscribe user')
+        LOGGER.exception('Unable to subscribe user')
         return False
     return True
 
@@ -30,7 +32,7 @@ def unsubscribe(listname, address):
     try:
         requests.delete(url, timeout=TIMEOUT, data={'address': address})
     except:
-        logging.exception('Unable to unsubscribe user')
+        LOGGER.exception('Unable to unsubscribe user')
         return False
     return True
 
@@ -56,7 +58,7 @@ def address_lists(address, description=''):
     try:
         lists = requests.get(url, timeout=TIMEOUT, params=params)
     except:
-        logging.exception('Unable to list mailing lists')
+        LOGGER.exception('Unable to list mailing lists')
         return []
 
     return lists.json()
diff --git a/colab/tests/settings.py b/colab/tests/settings.py
index 9220720..2f636d2 100644
--- a/colab/tests/settings.py
+++ b/colab/tests/settings.py
@@ -1,5 +1,30 @@
 from ..settings import *
 
+LOGGING = {
+    'version': 1,
+
+    'handlers': {
+        'null': {
+            'level': 'DEBUG',
+            'class': 'logging.NullHandler',
+        },
+    },
+
+    'loggers': {
+        'colab.mailman': {
+            'handlers': ['null'],
+            'propagate': False,
+        },
+        'haystack': {
+            'handlers': ['null'],
+            'propagate': False,
+        },
+        'pysolr': {
+            'handlers': ['null'],
+            'propagate': False,
+        },
+    },
+}
 
 import os
 HAYSTACK_CONNECTIONS = {
--
libgit2 0.21.2