--- a/docs/FAQ	Wed Jul 28 17:18:45 2004 +0100
+++ b/docs/FAQ	Wed Sep 29 23:07:28 2004 +0100
@@ -57,3 +57,22 @@
 
 A: No. You cannot read groups that are not known to NOFFLE, or articles
    that NOFFLE has already expired. NOFFLE will not refetch expired articles.
+
+-------------------------------------------------------------------------------
+
+Q: What are the possible values of the X-NOFFLE-Status: header that
+   Noffle adds to messages?
+
+A: The X-NOFFLE-Status: header can contain one, two or all of the
+   following, separated by spaces:
+
+     INTERESTING
+     - This message should be downloaded on the next fetch, if it has
+       not been downloaded already.
+
+     NOT_DOWNLOADED
+     - The article has not yet been downloaded.
+
+     RETRIEVING_FAILED
+     - An attempt was made to retrieve the article from upstream, but
+       the attempt failed.