diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -2145,6 +2145,7 @@
     'PhabricatorConfigVersionsModule' => 'applications/config/module/PhabricatorConfigVersionsModule.php',
     'PhabricatorConfigWelcomeController' => 'applications/config/controller/PhabricatorConfigWelcomeController.php',
     'PhabricatorConpherenceApplication' => 'applications/conpherence/application/PhabricatorConpherenceApplication.php',
+    'PhabricatorConpherenceNotificationsSetting' => 'applications/settings/setting/PhabricatorConpherenceNotificationsSetting.php',
     'PhabricatorConpherencePreferencesSettingsPanel' => 'applications/settings/panel/PhabricatorConpherencePreferencesSettingsPanel.php',
     'PhabricatorConpherenceThreadPHIDType' => 'applications/conpherence/phid/PhabricatorConpherenceThreadPHIDType.php',
     'PhabricatorConsoleApplication' => 'applications/console/application/PhabricatorConsoleApplication.php',
@@ -6676,6 +6677,7 @@
     'PhabricatorConfigVersionsModule' => 'PhabricatorConfigModule',
     'PhabricatorConfigWelcomeController' => 'PhabricatorConfigController',
     'PhabricatorConpherenceApplication' => 'PhabricatorApplication',
+    'PhabricatorConpherenceNotificationsSetting' => 'PhabricatorSelectSetting',
     'PhabricatorConpherencePreferencesSettingsPanel' => 'PhabricatorSettingsPanel',
     'PhabricatorConpherenceThreadPHIDType' => 'PhabricatorPHIDType',
     'PhabricatorConsoleApplication' => 'PhabricatorApplication',
diff --git a/src/applications/settings/editor/PhabricatorUserPreferencesEditor.php b/src/applications/settings/editor/PhabricatorUserPreferencesEditor.php
--- a/src/applications/settings/editor/PhabricatorUserPreferencesEditor.php
+++ b/src/applications/settings/editor/PhabricatorUserPreferencesEditor.php
@@ -99,6 +99,12 @@
     $actor = $this->getActor();
     $settings = PhabricatorSetting::getAllEnabledSettings($actor);
 
+    foreach ($settings as $key => $setting) {
+      $setting = clone $setting;
+      $setting->setViewer($actor);
+      $settings[$key] = $setting;
+    }
+
     switch ($type) {
       case PhabricatorUserPreferencesTransaction::TYPE_SETTING:
         foreach ($xactions as $xaction) {
diff --git a/src/applications/settings/setting/PhabricatorConpherenceNotificationsSetting.php b/src/applications/settings/setting/PhabricatorConpherenceNotificationsSetting.php
new file mode 100644
--- /dev/null
+++ b/src/applications/settings/setting/PhabricatorConpherenceNotificationsSetting.php
@@ -0,0 +1,31 @@
+<?php
+
+final class PhabricatorConpherenceNotificationsSetting
+  extends PhabricatorSelectSetting {
+
+  const SETTINGKEY = 'conph-notifications';
+
+  const VALUE_CONPHERENCE_EMAIL = '0';
+  const VALUE_CONPHERENCE_NOTIFY = '1';
+
+  public function getSettingName() {
+    return pht('Conpherence Notifications');
+  }
+
+  protected function getControlInstructions() {
+    return pht(
+      'Choose the default notification behavior for Conpherence rooms.');
+  }
+
+  public function getSettingDefaultValue() {
+    return self::VALUE_CONPHERENCE_EMAIL;
+  }
+
+  protected function getSelectOptions() {
+    return array(
+      self::VALUE_CONPHERENCE_EMAIL => pht('Send Email'),
+      self::VALUE_CONPHERENCE_NOTIFY => pht('Send Notifications'),
+    );
+  }
+
+}