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-rw-r--r--doc/doc-docbook/spec.xfpt7
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index 888eb7f60..bba71b76d 100644
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -12854,6 +12854,13 @@ or if not set, the value of &$qualify_domain$&.
.cindex queues named
The name of the spool queue in use; empty for the default queue.
+.vitem &$queue_size$&
+.vindex "&$queue_size$&"
+.cindex "queue" "size of"
+.cindex "spool" "number of messages"
+This variable contains the number of messages queued.
+It is evaluated on demand, but no more often than once every minute.
+
.vitem &$r_...$&
.vindex &$r_...$&
.cindex router variables