Docs: add crossref

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index dcbcbea7d37e9332ecdfe1a4d5568b5e019bdbe5..ba128334ba378b49bd419c0d3967d35477602a22 100644 (file)
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -17319,6 +17319,9 @@ manager, there is no way of controlling the total number of simultaneous
 deliveries if the configuration allows a delivery attempt as soon as a message
 is received.
 
 deliveries if the configuration allows a delivery attempt as soon as a message
 is received.
 

+See also the &%max_parallel%& generic transport option,
+and the &%serialize_hosts%& smtp transport option.
+

 .cindex "number of deliveries"
 .cindex "delivery" "maximum number of"
 If you want to control the total number of deliveries on the system, you
 .cindex "number of deliveries"
 .cindex "delivery" "maximum number of"
 If you want to control the total number of deliveries on the system, you