diff --git a/hobo/middleware/maintenance.py b/hobo/middleware/maintenance.py
index b89d56d..f8c3d04 100644
--- a/hobo/middleware/maintenance.py
+++ b/hobo/middleware/maintenance.py
@@ -14,8 +14,6 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-import dns.exception
-import dns.resolver
 from django.conf import settings
 from django.http import HttpResponse
 from django.utils.translation import ugettext as _
@@ -25,14 +23,6 @@ def pass_through(remote_addr):
     pass_through_ips = getattr(settings, 'MAINTENANCE_PASS_THROUGH_IPS', [])
     if remote_addr in pass_through_ips:
         return True
-    pass_through_ddns = getattr(settings, 'MAINTENANCE_PASS_THROUGH_DDNS', None)
-    if pass_through_ddns:
-        domain = '.'.join(reversed(remote_addr.split('.'))) + '.' + pass_through_ddns
-        try:
-            answers = dns.resolver.query(domain, 'A', lifetime=1)
-            return any(answer.address for answer in answers)
-        except (dns.resolver.NXDOMAIN, dns.resolver.NoAnswer, dns.exception.DNSException):
-            return False
     return False
 
 
diff --git a/tests/test_maintenance.py b/tests/test_maintenance.py
index 4190e97..3638dd7 100644
--- a/tests/test_maintenance.py
+++ b/tests/test_maintenance.py
@@ -17,10 +17,3 @@ def test_maintenance_middleware(app, admin_user, db, monkeypatch, settings):
 
     settings.MAINTENANCE_PASS_THROUGH_IPS = []
     resp = app.get('/', status=503)
-
-    settings.MAINTENANCE_PASS_THROUGH_DDNS = 'ddns.foo.bar'
-    with mock.patch('dns.resolver.resolve', return_value=[mock.Mock(address='127.0.0.2')]):
-        resp = app.get('/')
-        assert resp.status_code == 200
-    with mock.patch('dns.resolver.resolve', return_value=[]):
-        resp = app.get('/', status=503)