--- sendmail/sendmail.8.orig	2021-07-14 05:34:51 UTC
+++ sendmail/sendmail.8
@@ -552,6 +552,11 @@ for this amount of time,
 failed messages will be returned to the sender.
 The default is five days.
 .TP
+UseBlacklist
+If set, send authentication failure and success notifications to the
+.BR blacklistd (8)
+daemon.
+.TP
 .RI UserDatabaseSpec= userdatabase
 If set, a user database is consulted to get forwarding information.
 You can consider this an adjunct to the aliasing mechanism,
