diff -urN ../exim-4.97.orig/src/queue.c ./src/queue.c
--- ../exim-4.97.orig/src/queue.c	2023-11-04 14:55:49.000000000 +0200
+++ ./src/queue.c	2024-01-20 12:50:37.597010000 +0200
@@ -961,7 +961,9 @@
 
 if (option == QL_MSGID_ONLY)	/* Print only the message IDs from the chain */
   for (; qf; qf = qf->next)
-    fprintf(stdout, "%.*s\n", MESSAGE_ID_LENGTH, qf->text);
+    fprintf(stdout, "%.*s\n",
+      is_old_message_id(qf->text) ? MESSAGE_ID_LENGTH_OLD : MESSAGE_ID_LENGTH,
+      qf->text);
 
 else for (;
 	  qf && (reset_point = store_mark());
@@ -1021,7 +1023,9 @@
     }
 
   fprintf(stdout, "%s %.*s",
-    string_format_size(size, big_buffer), MESSAGE_ID_LENGTH, qf->text);
+    string_format_size(size, big_buffer),
+    is_old_message_id(qf->text) ? MESSAGE_ID_LENGTH_OLD : MESSAGE_ID_LENGTH,
+    qf->text);
 
   if (env_read && sender_address)
     {