diff --git a/roles/mail/templates/mailman/mailman-web.py.j2 b/roles/mail/templates/mailman/mailman-web.py.j2
index 0dba851..3f118fa 100644
--- a/roles/mail/templates/mailman/mailman-web.py.j2
+++ b/roles/mail/templates/mailman/mailman-web.py.j2
@@ -130,7 +130,7 @@ USE_TZ = True
 
 
 # Set default domain for email addresses.
-EMAILNAME = 'localhost.local'
+EMAILNAME = '{{ mail_domain }}'
 
 # If you enable internal authentication, this is the address that the emails
 # will appear to be coming from. Make sure you set a valid domain name,