diff --git a/smmapdfw/m4/cyruscheck.m4 b/smmapdfw/m4/cyruscheck.m4
index 84df042..e7c0fda 100644
--- a/smmapdfw/m4/cyruscheck.m4
+++ b/smmapdfw/m4/cyruscheck.m4
@@ -60,7 +60,10 @@ Scc
 R< $+ > < $+ >				$: < $(cyruscheck $1 $2 $:none $) >
 
 Scyruscheck
-R< $+ > < $+ >				$: < $1 > < $2 > < $(cyruscheck $1 $2 $:none $) >
+R< $+ > < $+ >				$: < $1 > < $2 > < $&f >
+dnl do not perform check when sender is not set - so only for the recipient
+R< $+ > < $+ > <  >			$@ < ok >
+R< $+ > < $+ > < $+ >			$: < $1 > < $2 > < $(cyruscheck $1 $2 $:none $) >
 ifelse(_dummy_, `dummy', `dnl
 dnl dummy
 R< $+ > < $+ > < $+ >			$@ < ok > $(cht_logger $1 -- $2 --- $3 $)', `dnl