--- a/gtd.schema	Thu Oct 20 05:53:52 2005 +0000
+++ b/gtd.schema	Thu Oct 20 06:08:27 2005 +0000
@@ -31,6 +31,13 @@
 ####
 
 objectClass (
+    gtdObjectClass:2 NAME 'gtdMailAlias' DESC 'Alias'
+    SUP top
+    STRUCTURAL
+    MUST ( mail )
+    MAY ( gtdMailForwardingAddress $ description ) )
+
+objectClass (
     gtdObjectClass:3 NAME 'gtdMailRecipient' DESC 'mail attributes associated to person'
     SUP top
     AUXILIARY