2 files changed, 10 insertions, 3 deletions
diff --git a/synapse/push/emailpusher.py b/synapse/push/emailpusher.py
index a72cba8306..e38ed02006 100644
--- a/synapse/push/emailpusher.py
+++ b/synapse/push/emailpusher.py
@@ -72,7 +72,12 @@ class EmailPusher(object):
         self.processing = False
 
         if self.hs.config.email_enable_notifs:
-            self.mailer = Mailer(self.hs)
+            if 'data' in pusherdict and 'brand' in pusherdict['data']:
+                app_name = pusherdict['data']['brand']
+            else:
+                app_name = self.hs.config.email_app_name
+
+            self.mailer = Mailer(self.hs, app_name)
         else:
             self.mailer = None
 
diff --git a/synapse/push/mailer.py b/synapse/push/mailer.py
index 3ae92d1574..0e9d8ccb53 100644
--- a/synapse/push/mailer.py
+++ b/synapse/push/mailer.py
@@ -78,12 +78,12 @@ ALLOWED_ATTRS = {
 
 
 class Mailer(object):
-    def __init__(self, hs):
+    def __init__(self, hs, app_name):
         self.hs = hs
         self.store = self.hs.get_datastore()
         self.state_handler = self.hs.get_state_handler()
         loader = jinja2.FileSystemLoader(self.hs.config.email_template_dir)
-        self.app_name = self.hs.config.email_app_name
+        self.app_name = app_name
         env = jinja2.Environment(loader=loader)
         env.filters["format_ts"] = format_ts_filter
         env.filters["mxc_to_http"] = self.mxc_to_http_filter
@@ -122,6 +122,8 @@ class Mailer(object):
             user_display_name = yield self.store.get_profile_displayname(
                 UserID.from_string(user_id).localpart
             )
+            if user_display_name is None:
+                user_display_name = user_id
         except StoreError:
             user_display_name = user_id