diff -r -u --exclude=.svn --exclude='*.pyc' branches/trac-0.9.pre-trunk/trac/Notify.py trunk/trac/Notify.py
--- branches/trac-0.9.pre-trunk/trac/Notify.py	2005-08-16 10:23:58.472942848 +0100
+++ trunk/trac/Notify.py	2005-08-16 11:18:26.952058496 +0100
@@ -309,6 +309,10 @@
                 emails.append(recipient)
             elif self.email_map.has_key(recipient):
                 emails.append(self.email_map[recipient])
+            elif self.config.get("notification", "default_domain"):
+                emails.append("%s@%s" % (
+                        recipient, 
+                        self.config.get("notification", "default_domain")))
 
         # Remove duplicates
         result = []