diff --git a/zproject/settings.py b/zproject/settings.py
index bc8ba11261..40a96eb14c 100644
--- a/zproject/settings.py
+++ b/zproject/settings.py
@@ -689,7 +689,7 @@ TEMPLATE_CONTEXT_PROCESSORS = (
 
 ACCOUNT_ACTIVATION_DAYS=7
 
-DEFAULT_FROM_EMAIL = "Zulip <zulip@zulip.com>"
+DEFAULT_FROM_EMAIL = "Zulip <%s>" % (EMAIL_HOST_USER,)
 # In some email setups, a single inbox may be setup to be a wildcard, so in that case allow
 # differing senders. Otherwise, *always* use the DEFAULT_FROM_EMAIL when not sending via
 # mandrill (i.e. in the localserver case)