ok that should be the right config, but the test is not well.
my smtpd.cfg looks like:
########################
CATCH @builder.com
failedaddr@builder.com
# extra rules added to prevent open relay usage
RECIPIENT Log_Reject *@*@*
RECIPIENT Log_Reject *%*
RECIPIENT Log_Reject *!*
RECIPIENT Log_Reject *#*@*
#######################
if i send an message to an unknown user i get the following message:
###########
----------------------------- ERROR REPORT ----------------------------- Message could not be delivered to the following recipient:
/ internet
DDT1=RFC-822; DDV1=qaywsx@builder.com;
because: 'Recipient name not found at destination' [OM 9300]
Supplementary Information:
550 5.1.1 <qaywsx@builder.com>... User unknown
The message was forwarded to the local Error Manager:
sxadmin / builder/CN=sxadmin
------------------------------------------------------------------------
###########
p.s.
the smtpd was restarted!!