--- loncom/interface/lonmsgdisplay.pm	2025/03/03 21:42:46	1.203
+++ loncom/interface/lonmsgdisplay.pm	2025/06/20 17:00:27	1.204
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Routines for messaging display
 #
-# $Id: lonmsgdisplay.pm,v 1.203 2025/03/03 21:42:46 raeburn Exp $
+# $Id: lonmsgdisplay.pm,v 1.204 2025/06/20 17:00:27 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -2170,7 +2170,7 @@ sub displaymessage {
 	my $username = $content{'sendername'}.':'.$content{'senderdomain'};
 	my %classlist_entry =
 	    &Apache::lonnet::get('classlist',[$username],$cdom,$cnum);
-	if (exists($classlist_entry{$username})) {
+	unless ($classlist_entry{$username} eq '') {
 	    $from_student = 1;
 	    $see_anonymous = &Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
 	}