Index: openacs-4/packages/acs-mail-lite/tcl/acs-mail-lite-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-mail-lite/tcl/acs-mail-lite-procs.tcl,v
diff -u -r1.34 -r1.35
--- openacs-4/packages/acs-mail-lite/tcl/acs-mail-lite-procs.tcl	30 Sep 2005 21:37:02 -0000	1.34
+++ openacs-4/packages/acs-mail-lite/tcl/acs-mail-lite-procs.tcl	30 Sep 2005 22:26:40 -0000	1.35
@@ -962,7 +962,7 @@
 	    db_dml create_queue_entry {}
 	}
 
-	if { !$no_callback_p } {
+	if { ![exists_and_not_null no_callback_p] } {
 	    callback acs_mail_lite::send \
 		-package_id $package_id \
 		-from_party_id $from_party_id \