+2006-11-21 Lars Magne Ingebrigtsen <larsi@gnus.org>
+
+ * message.texi (Mail Headers): Document `opportunistic'.
+
2006-10-13 Andreas Seltenreich <uwi7@rz.uni-karlsruhe.de>
* gnus.texi (Other modes): Fix typo. Add alternative index entry for
@item message-generate-hashcash
@vindex message-generate-hashcash
-Boolean variable that indicate whether @samp{X-Hashcash} headers
+Variable that indicates whether @samp{X-Hashcash} headers
should be computed for the message. @xref{Hashcash, ,Hashcash,gnus,
-The Gnus Manual}.
+The Gnus Manual}. If @symbol{opportunistic}, only generate the
+headers when it doesn't lead to the user having to wait.
@end table