diff --git a/CHANGELOG.md b/CHANGELOG.md
index 97b4886e..5b681223 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,7 @@ All notable changes to this project will be documented in this file.
 - For webhook integration, validate each header line separately
 - Fix "Send Test Notification" for webhooks that only fire on checks going up
 - Don't allow adding webhook integrations with both URLs blank
+- Don't allow adding email integrations with both "up" and "down" unchecked
 
 
 ## v1.11.0 - 2019-11-22
diff --git a/hc/front/forms.py b/hc/front/forms.py
index c9c86c9d..e640dbad 100644
--- a/hc/front/forms.py
+++ b/hc/front/forms.py
@@ -96,6 +96,15 @@ class AddEmailForm(forms.Form):
     down = forms.BooleanField(required=False, initial=True)
     up = forms.BooleanField(required=False, initial=True)
 
+    def clean(self):
+        super().clean()
+
+        down = self.cleaned_data.get("down")
+        up = self.cleaned_data.get("up")
+
+        if not down and not up:
+            self.add_error("down", "Please select at least one.")
+
 
 class AddUrlForm(forms.Form):
     error_css_class = "has-error"
diff --git a/hc/front/tests/test_add_email.py b/hc/front/tests/test_add_email.py
index 3431ad42..e631ccd4 100644
--- a/hc/front/tests/test_add_email.py
+++ b/hc/front/tests/test_add_email.py
@@ -17,7 +17,7 @@ class AddEmailTestCase(BaseTestCase):
         self.assertContains(r, "Requires confirmation")
 
     def test_it_creates_channel(self):
-        form = {"value": "dan@example.org"}
+        form = {"value": "dan@example.org", "down": "true", "up": "true"}
 
         self.client.login(username="alice@example.org", password="password")
         r = self.client.post(self.url, form)
@@ -39,7 +39,7 @@ class AddEmailTestCase(BaseTestCase):
         self.assertEqual(email.to[0], "dan@example.org")
 
     def test_team_access_works(self):
-        form = {"value": "bob@example.org"}
+        form = {"value": "bob@example.org", "down": "true", "up": "true"}
 
         self.client.login(username="bob@example.org", password="password")
         self.client.post(self.url, form)
@@ -49,14 +49,14 @@ class AddEmailTestCase(BaseTestCase):
         self.assertEqual(ch.project, self.project)
 
     def test_it_rejects_bad_email(self):
-        form = {"value": "not an email address"}
+        form = {"value": "not an email address", "down": "true", "up": "true"}
 
         self.client.login(username="alice@example.org", password="password")
         r = self.client.post(self.url, form)
         self.assertContains(r, "Enter a valid email address.")
 
     def test_it_trims_whitespace(self):
-        form = {"value": "   alice@example.org   "}
+        form = {"value": "   alice@example.org   ", "down": "true", "up": "true"}
 
         self.client.login(username="alice@example.org", password="password")
         self.client.post(self.url, form)
@@ -73,7 +73,7 @@ class AddEmailTestCase(BaseTestCase):
 
     @override_settings(EMAIL_USE_VERIFICATION=False)
     def test_it_auto_verifies_email(self):
-        form = {"value": "dan@example.org"}
+        form = {"value": "dan@example.org", "down": "true", "up": "true"}
 
         self.client.login(username="alice@example.org", password="password")
         r = self.client.post(self.url, form)
@@ -89,7 +89,7 @@ class AddEmailTestCase(BaseTestCase):
         self.assertEqual(len(mail.outbox), 0)
 
     def test_it_auto_verifies_own_email(self):
-        form = {"value": "alice@example.org"}
+        form = {"value": "alice@example.org", "down": "true", "up": "true"}
 
         self.client.login(username="alice@example.org", password="password")
         r = self.client.post(self.url, form)
@@ -103,3 +103,10 @@ class AddEmailTestCase(BaseTestCase):
 
         # Email should *not* have been sent
         self.assertEqual(len(mail.outbox), 0)
+
+    def test_it_rejects_unchecked_up_and_dwon(self):
+        form = {"value": "alice@example.org"}
+
+        self.client.login(username="alice@example.org", password="password")
+        r = self.client.post(self.url, form)
+        self.assertContains(r, "Please select at least one.")
diff --git a/templates/integrations/add_email.html b/templates/integrations/add_email.html
index 402968a7..27383dd9 100644
--- a/templates/integrations/add_email.html
+++ b/templates/integrations/add_email.html
@@ -42,7 +42,7 @@
             </div>
         </div>
 
-        <div id="add-email-notify-group" class="form-group">
+        <div id="add-email-notify-group" class="form-group {{ form.down.css_classes }}">
             <label class="col-sm-2 control-label">Notify When</label>
             <div class="col-sm-10">
                 <label class="checkbox-container">
@@ -62,11 +62,17 @@
                         {% if form.up.value %} checked {% endif %}>
                     <span class="checkmark"></span>
                     A check goes <strong>up</strong>
+                    </span>
+                    {% if form.down.errors %}
+                    <div class="help-block">
+                        {{ form.down.errors|join:"" }}
+                    </div>
+                    {% else %}
                     <br />
                     <span class="text-muted">
                     Ticketing system integrations: untick this and avoid creating new tickets
                     when checks come back up.
-                    </span>
+                    {% endif %}
                 </label>
             </div>
         </div>