Remove the mailto links and point back to the help page, Daniel
diff --git a/doc/tree.html b/doc/tree.html
index 1c04e19..aa05c75 100644
--- a/doc/tree.html
+++ b/doc/tree.html
@@ -131,7 +131,7 @@
         TEXT
         content=...</pre>
 <p>This should be useful for learning the internal representation model.</p>
-<p><a href="mailto:daniel@veillard.com">Daniel Veillard</a></p>
+<p><a href="bugs.html">Daniel Veillard</a></p>
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