For spam detection, mention $imap_headers. Closes #3223.

diff --git a/doc/manual.xml.head b/doc/manual.xml.head
index ca8c4622a84488cd6e8a535a65262297793822b1..616e7a3e7f506132d931041f06fa021b0269645e 100644 (file)
--- a/doc/manual.xml.head
+++ b/doc/manual.xml.head
@@ -3605,6 +3605,14 @@ sub-expression contained within parentheses.) <literal>&percnt;1</literal> is re
 the first back-reference in the regex, <literal>&percnt;2</literal> with the second, etc.
 </para>
 
+<para>
+To match spam tags, mutt needs the corresponding header information
+which is always the case for local and POP folders but not for IMAP in
+the default configuration. Depending on the spam header to be analyzed,
+<link linkend="imap-headers">&dollar;imap&lowbar;headers</link> may need
+to be adjusted.
+</para>
+
 <para>
 If you're using multiple spam filters, a message can have more than
 one spam-related header. You can define <literal>spam</literal> patterns for each